Home / 133,354.30-200,031.45-86,115.10

Finding the Fourth Proportional to 133,354.30, 200,031.45 and 86,115.10

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Solution

The fourth proportional to 133,354.30, 200,031.45 and 86,115.10 is: 129,172.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,354.30 : 200,031.45 = 86,115.10 : x
  2. Step 2: Convert to fraction form
    133,354.30/200,031.45 = 86,115.10/x
  3. Step 3: Cross multiply
    133,354.30x = 200,031.45 × 86,115.10
  4. Step 4: Simplify right side
    133,354.30x = 17,225,728,319.90
  5. Step 5: Solve for x
    x = 17,225,728,319.90/133,354.30
  6. Step 6: Final answer
    x = 129,172.65

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1.5x scale

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.