Home / 104,321.38-143,983.92-68,510.47

Finding the Fourth Proportional to 104,321.38, 143,983.92 and 68,510.47

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Solution

The fourth proportional to 104,321.38, 143,983.92 and 68,510.47 is: 94,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,321.38 : 143,983.92 = 68,510.47 : x
  2. Step 2: Convert to fraction form
    104,321.38/143,983.92 = 68,510.47/x
  3. Step 3: Cross multiply
    104,321.38x = 143,983.92 × 68,510.47
  4. Step 4: Simplify right side
    104,321.38x = 9,864,406,031.64
  5. Step 5: Solve for x
    x = 9,864,406,031.64/104,321.38
  6. Step 6: Final answer
    x = 94,557.86

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1.5x scale

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.