Home / 106,983.13-147,641.79-64,540.75

Finding the Fourth Proportional to 106,983.13, 147,641.79 and 64,540.75

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Solution

The fourth proportional to 106,983.13, 147,641.79 and 64,540.75 is: 89,069.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,983.13 : 147,641.79 = 64,540.75 : x
  2. Step 2: Convert to fraction form
    106,983.13/147,641.79 = 64,540.75/x
  3. Step 3: Cross multiply
    106,983.13x = 147,641.79 × 64,540.75
  4. Step 4: Simplify right side
    106,983.13x = 9,528,911,857.94
  5. Step 5: Solve for x
    x = 9,528,911,857.94/106,983.13
  6. Step 6: Final answer
    x = 89,069.29

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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.