Home / 143,765.25-215,650.10-42,573.53

Finding the Fourth Proportional to 143,765.25, 215,650.10 and 42,573.53

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Solution

The fourth proportional to 143,765.25, 215,650.10 and 42,573.53 is: 63,860.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,765.25 : 215,650.10 = 42,573.53 : x
  2. Step 2: Convert to fraction form
    143,765.25/215,650.10 = 42,573.53/x
  3. Step 3: Cross multiply
    143,765.25x = 215,650.10 × 42,573.53
  4. Step 4: Simplify right side
    143,765.25x = 9,180,986,001.85
  5. Step 5: Solve for x
    x = 9,180,986,001.85/143,765.25
  6. Step 6: Final answer
    x = 63,860.96

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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.