Home / 124,123.43-186,072.28-45,219.71

Finding the Fourth Proportional to 124,123.43, 186,072.28 and 45,219.71

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Solution

The fourth proportional to 124,123.43, 186,072.28 and 45,219.71 is: 67,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,123.43 : 186,072.28 = 45,219.71 : x
  2. Step 2: Convert to fraction form
    124,123.43/186,072.28 = 45,219.71/x
  3. Step 3: Cross multiply
    124,123.43x = 186,072.28 × 45,219.71
  4. Step 4: Simplify right side
    124,123.43x = 8,414,134,540.64
  5. Step 5: Solve for x
    x = 8,414,134,540.64/124,123.43
  6. Step 6: Final answer
    x = 67,788.45

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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.