Home / 125,869.91-188,749.47-66,691.94

Finding the Fourth Proportional to 125,869.91, 188,749.47 and 66,691.94

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Solution

The fourth proportional to 125,869.91, 188,749.47 and 66,691.94 is: 100,008.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,869.91 : 188,749.47 = 66,691.94 : x
  2. Step 2: Convert to fraction form
    125,869.91/188,749.47 = 66,691.94/x
  3. Step 3: Cross multiply
    125,869.91x = 188,749.47 × 66,691.94
  4. Step 4: Simplify right side
    125,869.91x = 12,588,068,328.27
  5. Step 5: Solve for x
    x = 12,588,068,328.27/125,869.91
  6. Step 6: Final answer
    x = 100,008.56

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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.