Home / 112,060,325.20-168,090,487.80-81,210,175.15

Finding the Fourth Proportional to 112,060,325.20, 168,090,487.80 and 81,210,175.15

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Solution

The fourth proportional to 112,060,325.20, 168,090,487.80 and 81,210,175.15 is: 121,815,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,060,325.20 : 168,090,487.80 = 81,210,175.15 : x
  2. Step 2: Convert to fraction form
    112,060,325.20/168,090,487.80 = 81,210,175.15/x
  3. Step 3: Cross multiply
    112,060,325.20x = 168,090,487.80 × 81,210,175.15
  4. Step 4: Simplify right side
    112,060,325.20x = 13,650,657,955,286,940
  5. Step 5: Solve for x
    x = 13,650,657,955,286,940/112,060,325.20
  6. Step 6: Final answer
    x = 121,815,262.73

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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.