Home / 121,539.38-182,307.99-42,635.12

Finding the Fourth Proportional to 121,539.38, 182,307.99 and 42,635.12

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Solution

The fourth proportional to 121,539.38, 182,307.99 and 42,635.12 is: 63,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,539.38 : 182,307.99 = 42,635.12 : x
  2. Step 2: Convert to fraction form
    121,539.38/182,307.99 = 42,635.12/x
  3. Step 3: Cross multiply
    121,539.38x = 182,307.99 × 42,635.12
  4. Step 4: Simplify right side
    121,539.38x = 7,772,723,030.61
  5. Step 5: Solve for x
    x = 7,772,723,030.61/121,539.38
  6. Step 6: Final answer
    x = 63,952.30

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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.