Home / 102,656.35-153,999.11-31,584.87

Finding the Fourth Proportional to 102,656.35, 153,999.11 and 31,584.87

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Solution

The fourth proportional to 102,656.35, 153,999.11 and 31,584.87 is: 47,381.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,656.35 : 153,999.11 = 31,584.87 : x
  2. Step 2: Convert to fraction form
    102,656.35/153,999.11 = 31,584.87/x
  3. Step 3: Cross multiply
    102,656.35x = 153,999.11 × 31,584.87
  4. Step 4: Simplify right side
    102,656.35x = 4,864,041,869.47
  5. Step 5: Solve for x
    x = 4,864,041,869.47/102,656.35
  6. Step 6: Final answer
    x = 47,381.79

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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.