Home / 187,154.17-258,318.75-156,891.55

Finding the Fourth Proportional to 187,154.17, 258,318.75 and 156,891.55

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Solution

The fourth proportional to 187,154.17, 258,318.75 and 156,891.55 is: 216,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,154.17 : 258,318.75 = 156,891.55 : x
  2. Step 2: Convert to fraction form
    187,154.17/258,318.75 = 156,891.55/x
  3. Step 3: Cross multiply
    187,154.17x = 258,318.75 × 156,891.55
  4. Step 4: Simplify right side
    187,154.17x = 40,528,029,081.56
  5. Step 5: Solve for x
    x = 40,528,029,081.56/187,154.17
  6. Step 6: Final answer
    x = 216,548.90

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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.