Home / 143,977.79-215,942.08-38,772.16

Finding the Fourth Proportional to 143,977.79, 215,942.08 and 38,772.16

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Solution

The fourth proportional to 143,977.79, 215,942.08 and 38,772.16 is: 58,151.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,977.79 : 215,942.08 = 38,772.16 : x
  2. Step 2: Convert to fraction form
    143,977.79/215,942.08 = 38,772.16/x
  3. Step 3: Cross multiply
    143,977.79x = 215,942.08 × 38,772.16
  4. Step 4: Simplify right side
    143,977.79x = 8,372,540,876.49
  5. Step 5: Solve for x
    x = 8,372,540,876.49/143,977.79
  6. Step 6: Final answer
    x = 58,151.61

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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.