Home / 142,655.97-213,983.45-42,815.73

Finding the Fourth Proportional to 142,655.97, 213,983.45 and 42,815.73

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Solution

The fourth proportional to 142,655.97, 213,983.45 and 42,815.73 is: 64,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,655.97 : 213,983.45 = 42,815.73 : x
  2. Step 2: Convert to fraction form
    142,655.97/213,983.45 = 42,815.73/x
  3. Step 3: Cross multiply
    142,655.97x = 213,983.45 × 42,815.73
  4. Step 4: Simplify right side
    142,655.97x = 9,161,857,405.59
  5. Step 5: Solve for x
    x = 9,161,857,405.59/142,655.97
  6. Step 6: Final answer
    x = 64,223.44

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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.