Home / 134,881.10-202,321.65-87,641.90

Finding the Fourth Proportional to 134,881.10, 202,321.65 and 87,641.90

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Solution

The fourth proportional to 134,881.10, 202,321.65 and 87,641.90 is: 131,462.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,881.10 : 202,321.65 = 87,641.90 : x
  2. Step 2: Convert to fraction form
    134,881.10/202,321.65 = 87,641.90/x
  3. Step 3: Cross multiply
    134,881.10x = 202,321.65 × 87,641.90
  4. Step 4: Simplify right side
    134,881.10x = 17,731,853,817.14
  5. Step 5: Solve for x
    x = 17,731,853,817.14/134,881.10
  6. Step 6: Final answer
    x = 131,462.85

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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.