Home / 112,498.20-168,617.70-45,905.40

Finding the Fourth Proportional to 112,498.20, 168,617.70 and 45,905.40

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Solution

The fourth proportional to 112,498.20, 168,617.70 and 45,905.40 is: 68,805.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,498.20 : 168,617.70 = 45,905.40 : x
  2. Step 2: Convert to fraction form
    112,498.20/168,617.70 = 45,905.40/x
  3. Step 3: Cross multiply
    112,498.20x = 168,617.70 × 45,905.40
  4. Step 4: Simplify right side
    112,498.20x = 7,740,462,965.58
  5. Step 5: Solve for x
    x = 7,740,462,965.58/112,498.20
  6. Step 6: Final answer
    x = 68,805.22

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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.