Home / 105,712.70-158,565.97-39,151.35

Finding the Fourth Proportional to 105,712.70, 158,565.97 and 39,151.35

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Solution

The fourth proportional to 105,712.70, 158,565.97 and 39,151.35 is: 58,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,712.70 : 158,565.97 = 39,151.35 : x
  2. Step 2: Convert to fraction form
    105,712.70/158,565.97 = 39,151.35/x
  3. Step 3: Cross multiply
    105,712.70x = 158,565.97 × 39,151.35
  4. Step 4: Simplify right side
    105,712.70x = 6,208,071,789.56
  5. Step 5: Solve for x
    x = 6,208,071,789.56/105,712.70
  6. Step 6: Final answer
    x = 58,725.88

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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.