Home / 142,180.50-213,270.14-57,921.87

Finding the Fourth Proportional to 142,180.50, 213,270.14 and 57,921.87

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Solution

The fourth proportional to 142,180.50, 213,270.14 and 57,921.87 is: 86,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,180.50 : 213,270.14 = 57,921.87 : x
  2. Step 2: Convert to fraction form
    142,180.50/213,270.14 = 57,921.87/x
  3. Step 3: Cross multiply
    142,180.50x = 213,270.14 × 57,921.87
  4. Step 4: Simplify right side
    142,180.50x = 12,353,005,323.96
  5. Step 5: Solve for x
    x = 12,353,005,323.96/142,180.50
  6. Step 6: Final answer
    x = 86,882.56

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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.