Home / 204,695.56-306,985.02-129,702.52

Finding the Fourth Proportional to 204,695.56, 306,985.02 and 129,702.52

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Solution

The fourth proportional to 204,695.56, 306,985.02 and 129,702.52 is: 194,516.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,695.56 : 306,985.02 = 129,702.52 : x
  2. Step 2: Convert to fraction form
    204,695.56/306,985.02 = 129,702.52/x
  3. Step 3: Cross multiply
    204,695.56x = 306,985.02 × 129,702.52
  4. Step 4: Simplify right side
    204,695.56x = 39,816,730,696.25
  5. Step 5: Solve for x
    x = 39,816,730,696.25/204,695.56
  6. Step 6: Final answer
    x = 194,516.83

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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.