Home / 143,488.22-215,239.98-43,640.78

Finding the Fourth Proportional to 143,488.22, 215,239.98 and 43,640.78

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Solution

The fourth proportional to 143,488.22, 215,239.98 and 43,640.78 is: 65,463.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,488.22 : 215,239.98 = 43,640.78 : x
  2. Step 2: Convert to fraction form
    143,488.22/215,239.98 = 43,640.78/x
  3. Step 3: Cross multiply
    143,488.22x = 215,239.98 × 43,640.78
  4. Step 4: Simplify right side
    143,488.22x = 9,393,240,614.38
  5. Step 5: Solve for x
    x = 9,393,240,614.38/143,488.22
  6. Step 6: Final answer
    x = 65,463.50

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1.5x scale

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.