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Finding the Fourth Proportional to 124,857.72, 187,286.58 and 54,752.76

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Solution

The fourth proportional to 124,857.72, 187,286.58 and 54,752.76 is: 82,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,857.72 : 187,286.58 = 54,752.76 : x
  2. Step 2: Convert to fraction form
    124,857.72/187,286.58 = 54,752.76/x
  3. Step 3: Cross multiply
    124,857.72x = 187,286.58 × 54,752.76
  4. Step 4: Simplify right side
    124,857.72x = 10,254,457,165.96
  5. Step 5: Solve for x
    x = 10,254,457,165.96/124,857.72
  6. Step 6: Final answer
    x = 82,129.14

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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.