Home / 178,356.92-267,438.66-78,400.16

Finding the Fourth Proportional to 178,356.92, 267,438.66 and 78,400.16

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Solution

The fourth proportional to 178,356.92, 267,438.66 and 78,400.16 is: 117,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,356.92 : 267,438.66 = 78,400.16 : x
  2. Step 2: Convert to fraction form
    178,356.92/267,438.66 = 78,400.16/x
  3. Step 3: Cross multiply
    178,356.92x = 267,438.66 × 78,400.16
  4. Step 4: Simplify right side
    178,356.92x = 20,967,233,734.19
  5. Step 5: Solve for x
    x = 20,967,233,734.19/178,356.92
  6. Step 6: Final answer
    x = 117,557.72

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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.