Home / 125,837.85-173,681.10-72,159.15

Finding the Fourth Proportional to 125,837.85, 173,681.10 and 72,159.15

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Solution

The fourth proportional to 125,837.85, 173,681.10 and 72,159.15 is: 99,593.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,837.85 : 173,681.10 = 72,159.15 : x
  2. Step 2: Convert to fraction form
    125,837.85/173,681.10 = 72,159.15/x
  3. Step 3: Cross multiply
    125,837.85x = 173,681.10 × 72,159.15
  4. Step 4: Simplify right side
    125,837.85x = 12,532,680,547.07
  5. Step 5: Solve for x
    x = 12,532,680,547.07/125,837.85
  6. Step 6: Final answer
    x = 99,593.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.