Home / 135,553.64-187,061.74-74,299.34

Finding the Fourth Proportional to 135,553.64, 187,061.74 and 74,299.34

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Solution

The fourth proportional to 135,553.64, 187,061.74 and 74,299.34 is: 102,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,553.64 : 187,061.74 = 74,299.34 : x
  2. Step 2: Convert to fraction form
    135,553.64/187,061.74 = 74,299.34/x
  3. Step 3: Cross multiply
    135,553.64x = 187,061.74 × 74,299.34
  4. Step 4: Simplify right side
    135,553.64x = 13,898,564,103.16
  5. Step 5: Solve for x
    x = 13,898,564,103.16/135,553.64
  6. Step 6: Final answer
    x = 102,531.84

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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.