Home / 106,212.59-159,318.86-39,657.91

Finding the Fourth Proportional to 106,212.59, 159,318.86 and 39,657.91

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Solution

The fourth proportional to 106,212.59, 159,318.86 and 39,657.91 is: 59,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,212.59 : 159,318.86 = 39,657.91 : x
  2. Step 2: Convert to fraction form
    106,212.59/159,318.86 = 39,657.91/x
  3. Step 3: Cross multiply
    106,212.59x = 159,318.86 × 39,657.91
  4. Step 4: Simplify right side
    106,212.59x = 6,318,253,011.18
  5. Step 5: Solve for x
    x = 6,318,253,011.18/106,212.59
  6. Step 6: Final answer
    x = 59,486.86

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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.