Home / 268,568.10-402,852.15-81,555.30

Finding the Fourth Proportional to 268,568.10, 402,852.15 and 81,555.30

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Solution

The fourth proportional to 268,568.10, 402,852.15 and 81,555.30 is: 122,332.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,568.10 : 402,852.15 = 81,555.30 : x
  2. Step 2: Convert to fraction form
    268,568.10/402,852.15 = 81,555.30/x
  3. Step 3: Cross multiply
    268,568.10x = 402,852.15 × 81,555.30
  4. Step 4: Simplify right side
    268,568.10x = 32,854,727,948.90
  5. Step 5: Solve for x
    x = 32,854,727,948.90/268,568.10
  6. Step 6: Final answer
    x = 122,332.95

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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.