Home / 136,789.38-205,085.76-64,702.32

Finding the Fourth Proportional to 136,789.38, 205,085.76 and 64,702.32

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Solution

The fourth proportional to 136,789.38, 205,085.76 and 64,702.32 is: 97,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,789.38 : 205,085.76 = 64,702.32 : x
  2. Step 2: Convert to fraction form
    136,789.38/205,085.76 = 64,702.32/x
  3. Step 3: Cross multiply
    136,789.38x = 205,085.76 × 64,702.32
  4. Step 4: Simplify right side
    136,789.38x = 13,269,524,470.96
  5. Step 5: Solve for x
    x = 13,269,524,470.96/136,789.38
  6. Step 6: Final answer
    x = 97,006.98

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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.