Home / 142,451.12-213,687.92-47,681.87

Finding the Fourth Proportional to 142,451.12, 213,687.92 and 47,681.87

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Solution

The fourth proportional to 142,451.12, 213,687.92 and 47,681.87 is: 71,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.12 : 213,687.92 = 47,681.87 : x
  2. Step 2: Convert to fraction form
    142,451.12/213,687.92 = 47,681.87/x
  3. Step 3: Cross multiply
    142,451.12x = 213,687.92 × 47,681.87
  4. Step 4: Simplify right side
    142,451.12x = 10,189,038,672.78
  5. Step 5: Solve for x
    x = 10,189,038,672.78/142,451.12
  6. Step 6: Final answer
    x = 71,526.56

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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.