Home / 125,508.38-188,256.81-42,403.10

Finding the Fourth Proportional to 125,508.38, 188,256.81 and 42,403.10

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Solution

The fourth proportional to 125,508.38, 188,256.81 and 42,403.10 is: 63,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,508.38 : 188,256.81 = 42,403.10 : x
  2. Step 2: Convert to fraction form
    125,508.38/188,256.81 = 42,403.10/x
  3. Step 3: Cross multiply
    125,508.38x = 188,256.81 × 42,403.10
  4. Step 4: Simplify right side
    125,508.38x = 7,982,672,340.11
  5. Step 5: Solve for x
    x = 7,982,672,340.11/125,508.38
  6. Step 6: Final answer
    x = 63,602.70

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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.