Home / 104,029.92-143,521.20-72,182.88

Finding the Fourth Proportional to 104,029.92, 143,521.20 and 72,182.88

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Solution

The fourth proportional to 104,029.92, 143,521.20 and 72,182.88 is: 99,584.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,029.92 : 143,521.20 = 72,182.88 : x
  2. Step 2: Convert to fraction form
    104,029.92/143,521.20 = 72,182.88/x
  3. Step 3: Cross multiply
    104,029.92x = 143,521.20 × 72,182.88
  4. Step 4: Simplify right side
    104,029.92x = 10,359,773,557.06
  5. Step 5: Solve for x
    x = 10,359,773,557.06/104,029.92
  6. Step 6: Final answer
    x = 99,584.56

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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.