Home / 102,763.20-141,754.50-64,507.80

Finding the Fourth Proportional to 102,763.20, 141,754.50 and 64,507.80

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Solution

The fourth proportional to 102,763.20, 141,754.50 and 64,507.80 is: 88,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,763.20 : 141,754.50 = 64,507.80 : x
  2. Step 2: Convert to fraction form
    102,763.20/141,754.50 = 64,507.80/x
  3. Step 3: Cross multiply
    102,763.20x = 141,754.50 × 64,507.80
  4. Step 4: Simplify right side
    102,763.20x = 9,144,270,935.10
  5. Step 5: Solve for x
    x = 9,144,270,935.10/102,763.20
  6. Step 6: Final answer
    x = 88,983.91

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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.