Home / 345,475.16-518,108.10-120,793.74

Finding the Fourth Proportional to 345,475.16, 518,108.10 and 120,793.74

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Solution

The fourth proportional to 345,475.16, 518,108.10 and 120,793.74 is: 181,154.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,475.16 : 518,108.10 = 120,793.74 : x
  2. Step 2: Convert to fraction form
    345,475.16/518,108.10 = 120,793.74/x
  3. Step 3: Cross multiply
    345,475.16x = 518,108.10 × 120,793.74
  4. Step 4: Simplify right side
    345,475.16x = 62,584,215,123.29
  5. Step 5: Solve for x
    x = 62,584,215,123.29/345,475.16
  6. Step 6: Final answer
    x = 181,154.02

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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.