Home / 112,060,363.20-168,090,544.80-81,210,213.15

Finding the Fourth Proportional to 112,060,363.20, 168,090,544.80 and 81,210,213.15

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Solution

The fourth proportional to 112,060,363.20, 168,090,544.80 and 81,210,213.15 is: 121,815,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060,363.20 : 168,090,544.80 = 81,210,213.15 : x
  2. Step 2: Convert to fraction form
    112,060,363.20/168,090,544.80 = 81,210,213.15/x
  3. Step 3: Cross multiply
    112,060,363.20x = 168,090,544.80 × 81,210,213.15
  4. Step 4: Simplify right side
    112,060,363.20x = 13,650,668,971,707,626
  5. Step 5: Solve for x
    x = 13,650,668,971,707,626/112,060,363.20
  6. Step 6: Final answer
    x = 121,815,319.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.