Home / 135,728.01-187,304.88-75,298.66

Finding the Fourth Proportional to 135,728.01, 187,304.88 and 75,298.66

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Solution

The fourth proportional to 135,728.01, 187,304.88 and 75,298.66 is: 103,912.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,728.01 : 187,304.88 = 75,298.66 : x
  2. Step 2: Convert to fraction form
    135,728.01/187,304.88 = 75,298.66/x
  3. Step 3: Cross multiply
    135,728.01x = 187,304.88 × 75,298.66
  4. Step 4: Simplify right side
    135,728.01x = 14,103,806,475.46
  5. Step 5: Solve for x
    x = 14,103,806,475.46/135,728.01
  6. Step 6: Final answer
    x = 103,912.28

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1.5x scale

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.