Home / 178,764.78-268,260.12-99,930.72

Finding the Fourth Proportional to 178,764.78, 268,260.12 and 99,930.72

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Solution

The fourth proportional to 178,764.78, 268,260.12 and 99,930.72 is: 149,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,764.78 : 268,260.12 = 99,930.72 : x
  2. Step 2: Convert to fraction form
    178,764.78/268,260.12 = 99,930.72/x
  3. Step 3: Cross multiply
    178,764.78x = 268,260.12 × 99,930.72
  4. Step 4: Simplify right side
    178,764.78x = 26,807,426,938.89
  5. Step 5: Solve for x
    x = 26,807,426,938.89/178,764.78
  6. Step 6: Final answer
    x = 149,959.22

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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.