Home / 134,890.52-186,159.22-74,472.80

Finding the Fourth Proportional to 134,890.52, 186,159.22 and 74,472.80

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Solution

The fourth proportional to 134,890.52, 186,159.22 and 74,472.80 is: 102,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.52 : 186,159.22 = 74,472.80 : x
  2. Step 2: Convert to fraction form
    134,890.52/186,159.22 = 74,472.80/x
  3. Step 3: Cross multiply
    134,890.52x = 186,159.22 × 74,472.80
  4. Step 4: Simplify right side
    134,890.52x = 13,863,797,242.24
  5. Step 5: Solve for x
    x = 13,863,797,242.24/134,890.52
  6. Step 6: Final answer
    x = 102,778.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.