Home / 106,565.10-146,969.55-64,115.70

Finding the Fourth Proportional to 106,565.10, 146,969.55 and 64,115.70

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Solution

The fourth proportional to 106,565.10, 146,969.55 and 64,115.70 is: 88,425.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,565.10 : 146,969.55 = 64,115.70 : x
  2. Step 2: Convert to fraction form
    106,565.10/146,969.55 = 64,115.70/x
  3. Step 3: Cross multiply
    106,565.10x = 146,969.55 × 64,115.70
  4. Step 4: Simplify right side
    106,565.10x = 9,423,055,576.94
  5. Step 5: Solve for x
    x = 9,423,055,576.94/106,565.10
  6. Step 6: Final answer
    x = 88,425.34

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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.