Home / 148,916.88-205,505.24-81,848.88

Finding the Fourth Proportional to 148,916.88, 205,505.24 and 81,848.88

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Solution

The fourth proportional to 148,916.88, 205,505.24 and 81,848.88 is: 112,951.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,916.88 : 205,505.24 = 81,848.88 : x
  2. Step 2: Convert to fraction form
    148,916.88/205,505.24 = 81,848.88/x
  3. Step 3: Cross multiply
    148,916.88x = 205,505.24 × 81,848.88
  4. Step 4: Simplify right side
    148,916.88x = 16,820,373,318.89
  5. Step 5: Solve for x
    x = 16,820,373,318.89/148,916.88
  6. Step 6: Final answer
    x = 112,951.42

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Why These Related Problems?

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