Home / 187,428.27-281,142.17-47,186.89

Finding the Fourth Proportional to 187,428.27, 281,142.17 and 47,186.89

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Solution

The fourth proportional to 187,428.27, 281,142.17 and 47,186.89 is: 70,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,428.27 : 281,142.17 = 47,186.89 : x
  2. Step 2: Convert to fraction form
    187,428.27/281,142.17 = 47,186.89/x
  3. Step 3: Cross multiply
    187,428.27x = 281,142.17 × 47,186.89
  4. Step 4: Simplify right side
    187,428.27x = 13,266,224,650.15
  5. Step 5: Solve for x
    x = 13,266,224,650.15/187,428.27
  6. Step 6: Final answer
    x = 70,780.28

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1.5x scale

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.