Home / 136,687.50-205,122.38-52,517.16

Finding the Fourth Proportional to 136,687.50, 205,122.38 and 52,517.16

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Solution

The fourth proportional to 136,687.50, 205,122.38 and 52,517.16 is: 78,810.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,687.50 : 205,122.38 = 52,517.16 : x
  2. Step 2: Convert to fraction form
    136,687.50/205,122.38 = 52,517.16/x
  3. Step 3: Cross multiply
    136,687.50x = 205,122.38 × 52,517.16
  4. Step 4: Simplify right side
    136,687.50x = 10,772,444,587.46
  5. Step 5: Solve for x
    x = 10,772,444,587.46/136,687.50
  6. Step 6: Final answer
    x = 78,810.75

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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.