Home / 230,350.15-345,542.72-78,500.03

Finding the Fourth Proportional to 230,350.15, 345,542.72 and 78,500.03

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Solution

The fourth proportional to 230,350.15, 345,542.72 and 78,500.03 is: 117,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,350.15 : 345,542.72 = 78,500.03 : x
  2. Step 2: Convert to fraction form
    230,350.15/345,542.72 = 78,500.03/x
  3. Step 3: Cross multiply
    230,350.15x = 345,542.72 × 78,500.03
  4. Step 4: Simplify right side
    230,350.15x = 27,125,114,357.64
  5. Step 5: Solve for x
    x = 27,125,114,357.64/230,350.15
  6. Step 6: Final answer
    x = 117,756.01

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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.