Home / 143,836.47-215,770.56-38,663.64

Finding the Fourth Proportional to 143,836.47, 215,770.56 and 38,663.64

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Solution

The fourth proportional to 143,836.47, 215,770.56 and 38,663.64 is: 57,999.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,836.47 : 215,770.56 = 38,663.64 : x
  2. Step 2: Convert to fraction form
    143,836.47/215,770.56 = 38,663.64/x
  3. Step 3: Cross multiply
    143,836.47x = 215,770.56 × 38,663.64
  4. Step 4: Simplify right side
    143,836.47x = 8,342,475,254.44
  5. Step 5: Solve for x
    x = 8,342,475,254.44/143,836.47
  6. Step 6: Final answer
    x = 57,999.72

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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.