Home / 143,588.38-215,188.47-103,675.63

Finding the Fourth Proportional to 143,588.38, 215,188.47 and 103,675.63

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Solution

The fourth proportional to 143,588.38, 215,188.47 and 103,675.63 is: 155,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,588.38 : 215,188.47 = 103,675.63 : x
  2. Step 2: Convert to fraction form
    143,588.38/215,188.47 = 103,675.63/x
  3. Step 3: Cross multiply
    143,588.38x = 215,188.47 × 103,675.63
  4. Step 4: Simplify right side
    143,588.38x = 22,309,799,658.01
  5. Step 5: Solve for x
    x = 22,309,799,658.01/143,588.38
  6. Step 6: Final answer
    x = 155,373.30

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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.