Home / 106,521.86-146,979.68-64,083.12

Finding the Fourth Proportional to 106,521.86, 146,979.68 and 64,083.12

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Solution

The fourth proportional to 106,521.86, 146,979.68 and 64,083.12 is: 88,422.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,521.86 : 146,979.68 = 64,083.12 : x
  2. Step 2: Convert to fraction form
    106,521.86/146,979.68 = 64,083.12/x
  3. Step 3: Cross multiply
    106,521.86x = 146,979.68 × 64,083.12
  4. Step 4: Simplify right side
    106,521.86x = 9,418,916,471.00
  5. Step 5: Solve for x
    x = 9,418,916,471.00/106,521.86
  6. Step 6: Final answer
    x = 88,422.38

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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.