Home / 230,350.15-345,542.72-78,500.04

Finding the Fourth Proportional to 230,350.15, 345,542.72 and 78,500.04

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Solution

The fourth proportional to 230,350.15, 345,542.72 and 78,500.04 is: 117,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,350.15 : 345,542.72 = 78,500.04 : x
  2. Step 2: Convert to fraction form
    230,350.15/345,542.72 = 78,500.04/x
  3. Step 3: Cross multiply
    230,350.15x = 345,542.72 × 78,500.04
  4. Step 4: Simplify right side
    230,350.15x = 27,125,117,341.71
  5. Step 5: Solve for x
    x = 27,125,117,341.71/230,350.15
  6. Step 6: Final answer
    x = 117,756.02

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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.