Home / 128,726.31-193,042.07-44,464.85

Finding the Fourth Proportional to 128,726.31, 193,042.07 and 44,464.85

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Solution

The fourth proportional to 128,726.31, 193,042.07 and 44,464.85 is: 66,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,726.31 : 193,042.07 = 44,464.85 : x
  2. Step 2: Convert to fraction form
    128,726.31/193,042.07 = 44,464.85/x
  3. Step 3: Cross multiply
    128,726.31x = 193,042.07 × 44,464.85
  4. Step 4: Simplify right side
    128,726.31x = 8,583,586,389.36
  5. Step 5: Solve for x
    x = 8,583,586,389.36/128,726.31
  6. Step 6: Final answer
    x = 66,680.90

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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.