Home / 134,487.90-201,731.85-89,387.10

Finding the Fourth Proportional to 134,487.90, 201,731.85 and 89,387.10

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Solution

The fourth proportional to 134,487.90, 201,731.85 and 89,387.10 is: 134,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,487.90 : 201,731.85 = 89,387.10 : x
  2. Step 2: Convert to fraction form
    134,487.90/201,731.85 = 89,387.10/x
  3. Step 3: Cross multiply
    134,487.90x = 201,731.85 × 89,387.10
  4. Step 4: Simplify right side
    134,487.90x = 18,032,225,049.14
  5. Step 5: Solve for x
    x = 18,032,225,049.14/134,487.90
  6. Step 6: Final answer
    x = 134,080.65

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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.