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Finding the Fourth Proportional to 124,147, 171,322.86 and 67,558.78

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Solution

The fourth proportional to 124,147, 171,322.86 and 67,558.78 is: 93,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,147 : 171,322.86 = 67,558.78 : x
  2. Step 2: Convert to fraction form
    124,147/171,322.86 = 67,558.78/x
  3. Step 3: Cross multiply
    124,147x = 171,322.86 × 67,558.78
  4. Step 4: Simplify right side
    124,147x = 11,574,363,407.71
  5. Step 5: Solve for x
    x = 11,574,363,407.71/124,147
  6. Step 6: Final answer
    x = 93,231.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.