Home / 142,531.95-213,711.53-71,371.83

Finding the Fourth Proportional to 142,531.95, 213,711.53 and 71,371.83

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Solution

The fourth proportional to 142,531.95, 213,711.53 and 71,371.83 is: 107,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,531.95 : 213,711.53 = 71,371.83 : x
  2. Step 2: Convert to fraction form
    142,531.95/213,711.53 = 71,371.83/x
  3. Step 3: Cross multiply
    142,531.95x = 213,711.53 × 71,371.83
  4. Step 4: Simplify right side
    142,531.95x = 15,252,982,631.34
  5. Step 5: Solve for x
    x = 15,252,982,631.34/142,531.95
  6. Step 6: Final answer
    x = 107,014.48

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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.