Home / 135,680.76-187,248.96-75,257.16

Finding the Fourth Proportional to 135,680.76, 187,248.96 and 75,257.16

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Solution

The fourth proportional to 135,680.76, 187,248.96 and 75,257.16 is: 103,860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,680.76 : 187,248.96 = 75,257.16 : x
  2. Step 2: Convert to fraction form
    135,680.76/187,248.96 = 75,257.16/x
  3. Step 3: Cross multiply
    135,680.76x = 187,248.96 × 75,257.16
  4. Step 4: Simplify right side
    135,680.76x = 14,091,824,942.55
  5. Step 5: Solve for x
    x = 14,091,824,942.55/135,680.76
  6. Step 6: Final answer
    x = 103,860.16

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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.