Home / 142,301.79-213,562.85-53,635.95

Finding the Fourth Proportional to 142,301.79, 213,562.85 and 53,635.95

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Solution

The fourth proportional to 142,301.79, 213,562.85 and 53,635.95 is: 80,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,301.79 : 213,562.85 = 53,635.95 : x
  2. Step 2: Convert to fraction form
    142,301.79/213,562.85 = 53,635.95/x
  3. Step 3: Cross multiply
    142,301.79x = 213,562.85 × 53,635.95
  4. Step 4: Simplify right side
    142,301.79x = 11,454,646,076.28
  5. Step 5: Solve for x
    x = 11,454,646,076.28/142,301.79
  6. Step 6: Final answer
    x = 80,495.45

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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.