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Finding the Fourth Proportional to 178,810.70, 268,248.45 and 89,840.30

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Solution

The fourth proportional to 178,810.70, 268,248.45 and 89,840.30 is: 134,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,810.70 : 268,248.45 = 89,840.30 : x
  2. Step 2: Convert to fraction form
    178,810.70/268,248.45 = 89,840.30/x
  3. Step 3: Cross multiply
    178,810.70x = 268,248.45 × 89,840.30
  4. Step 4: Simplify right side
    178,810.70x = 24,099,521,222.54
  5. Step 5: Solve for x
    x = 24,099,521,222.54/178,810.70
  6. Step 6: Final answer
    x = 134,776.73

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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.