Home / 143,735.18-215,644.84-42,535.90

Finding the Fourth Proportional to 143,735.18, 215,644.84 and 42,535.90

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Solution

The fourth proportional to 143,735.18, 215,644.84 and 42,535.90 is: 63,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,735.18 : 215,644.84 = 42,535.90 : x
  2. Step 2: Convert to fraction form
    143,735.18/215,644.84 = 42,535.90/x
  3. Step 3: Cross multiply
    143,735.18x = 215,644.84 × 42,535.90
  4. Step 4: Simplify right side
    143,735.18x = 9,172,647,349.76
  5. Step 5: Solve for x
    x = 9,172,647,349.76/143,735.18
  6. Step 6: Final answer
    x = 63,816.30

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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.