Home / 159,013.50-219,307.19-107,942.28

Finding the Fourth Proportional to 159,013.50, 219,307.19 and 107,942.28

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Solution

The fourth proportional to 159,013.50, 219,307.19 and 107,942.28 is: 148,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,013.50 : 219,307.19 = 107,942.28 : x
  2. Step 2: Convert to fraction form
    159,013.50/219,307.19 = 107,942.28/x
  3. Step 3: Cross multiply
    159,013.50x = 219,307.19 × 107,942.28
  4. Step 4: Simplify right side
    159,013.50x = 23,672,517,569.28
  5. Step 5: Solve for x
    x = 23,672,517,569.28/159,013.50
  6. Step 6: Final answer
    x = 148,871.12

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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.