Home / 138,748.52-208,122.62-38,923.49

Finding the Fourth Proportional to 138,748.52, 208,122.62 and 38,923.49

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Solution

The fourth proportional to 138,748.52, 208,122.62 and 38,923.49 is: 58,385.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,748.52 : 208,122.62 = 38,923.49 : x
  2. Step 2: Convert to fraction form
    138,748.52/208,122.62 = 38,923.49/x
  3. Step 3: Cross multiply
    138,748.52x = 208,122.62 × 38,923.49
  4. Step 4: Simplify right side
    138,748.52x = 8,100,857,483.11
  5. Step 5: Solve for x
    x = 8,100,857,483.11/138,748.52
  6. Step 6: Final answer
    x = 58,385.18

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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.