Home / 99,219.24-136,975.86-76,508.46

Finding the Fourth Proportional to 99,219.24, 136,975.86 and 76,508.46

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Solution

The fourth proportional to 99,219.24, 136,975.86 and 76,508.46 is: 105,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,219.24 : 136,975.86 = 76,508.46 : x
  2. Step 2: Convert to fraction form
    99,219.24/136,975.86 = 76,508.46/x
  3. Step 3: Cross multiply
    99,219.24x = 136,975.86 × 76,508.46
  4. Step 4: Simplify right side
    99,219.24x = 10,479,812,105.78
  5. Step 5: Solve for x
    x = 10,479,812,105.78/99,219.24
  6. Step 6: Final answer
    x = 105,622.78

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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.