Home / 215,819.04-297,830.70-120,331.86

Finding the Fourth Proportional to 215,819.04, 297,830.70 and 120,331.86

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Solution

The fourth proportional to 215,819.04, 297,830.70 and 120,331.86 is: 166,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,819.04 : 297,830.70 = 120,331.86 : x
  2. Step 2: Convert to fraction form
    215,819.04/297,830.70 = 120,331.86/x
  3. Step 3: Cross multiply
    215,819.04x = 297,830.70 × 120,331.86
  4. Step 4: Simplify right side
    215,819.04x = 35,838,522,096.10
  5. Step 5: Solve for x
    x = 35,838,522,096.10/215,819.04
  6. Step 6: Final answer
    x = 166,058.20

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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.