Home / 102,655.35-153,997.61-31,583.87

Finding the Fourth Proportional to 102,655.35, 153,997.61 and 31,583.87

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Solution

The fourth proportional to 102,655.35, 153,997.61 and 31,583.87 is: 47,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,655.35 : 153,997.61 = 31,583.87 : x
  2. Step 2: Convert to fraction form
    102,655.35/153,997.61 = 31,583.87/x
  3. Step 3: Cross multiply
    102,655.35x = 153,997.61 × 31,583.87
  4. Step 4: Simplify right side
    102,655.35x = 4,863,841,010.37
  5. Step 5: Solve for x
    x = 4,863,841,010.37/102,655.35
  6. Step 6: Final answer
    x = 47,380.30

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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.