Home / 137,902.76-190,306.50-77,475.96

Finding the Fourth Proportional to 137,902.76, 190,306.50 and 77,475.96

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Solution

The fourth proportional to 137,902.76, 190,306.50 and 77,475.96 is: 106,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,902.76 : 190,306.50 = 77,475.96 : x
  2. Step 2: Convert to fraction form
    137,902.76/190,306.50 = 77,475.96/x
  3. Step 3: Cross multiply
    137,902.76x = 190,306.50 × 77,475.96
  4. Step 4: Simplify right side
    137,902.76x = 14,744,178,781.74
  5. Step 5: Solve for x
    x = 14,744,178,781.74/137,902.76
  6. Step 6: Final answer
    x = 106,917.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.