Home / 119,338.12-178,895.40-40,397.08

Finding the Fourth Proportional to 119,338.12, 178,895.40 and 40,397.08

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Solution

The fourth proportional to 119,338.12, 178,895.40 and 40,397.08 is: 60,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,338.12 : 178,895.40 = 40,397.08 : x
  2. Step 2: Convert to fraction form
    119,338.12/178,895.40 = 40,397.08/x
  3. Step 3: Cross multiply
    119,338.12x = 178,895.40 × 40,397.08
  4. Step 4: Simplify right side
    119,338.12x = 7,226,851,785.43
  5. Step 5: Solve for x
    x = 7,226,851,785.43/119,338.12
  6. Step 6: Final answer
    x = 60,557.78

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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.