Home / 215,520.45-323,319.89-89,092.03

Finding the Fourth Proportional to 215,520.45, 323,319.89 and 89,092.03

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Solution

The fourth proportional to 215,520.45, 323,319.89 and 89,092.03 is: 133,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,520.45 : 323,319.89 = 89,092.03 : x
  2. Step 2: Convert to fraction form
    215,520.45/323,319.89 = 89,092.03/x
  3. Step 3: Cross multiply
    215,520.45x = 323,319.89 × 89,092.03
  4. Step 4: Simplify right side
    215,520.45x = 28,805,225,339.48
  5. Step 5: Solve for x
    x = 28,805,225,339.48/215,520.45
  6. Step 6: Final answer
    x = 133,654.26

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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.