Home / 161,972.40-223,520.32-89,375.92

Finding the Fourth Proportional to 161,972.40, 223,520.32 and 89,375.92

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Solution

The fourth proportional to 161,972.40, 223,520.32 and 89,375.92 is: 123,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,972.40 : 223,520.32 = 89,375.92 : x
  2. Step 2: Convert to fraction form
    161,972.40/223,520.32 = 89,375.92/x
  3. Step 3: Cross multiply
    161,972.40x = 223,520.32 × 89,375.92
  4. Step 4: Simplify right side
    161,972.40x = 19,977,334,238.69
  5. Step 5: Solve for x
    x = 19,977,334,238.69/161,972.40
  6. Step 6: Final answer
    x = 123,337.89

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1.5x scale

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.