Home / 111,883.68-154,321.20-76,011.62

Finding the Fourth Proportional to 111,883.68, 154,321.20 and 76,011.62

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Solution

The fourth proportional to 111,883.68, 154,321.20 and 76,011.62 is: 104,842.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,883.68 : 154,321.20 = 76,011.62 : x
  2. Step 2: Convert to fraction form
    111,883.68/154,321.20 = 76,011.62/x
  3. Step 3: Cross multiply
    111,883.68x = 154,321.20 × 76,011.62
  4. Step 4: Simplify right side
    111,883.68x = 11,730,203,640.74
  5. Step 5: Solve for x
    x = 11,730,203,640.74/111,883.68
  6. Step 6: Final answer
    x = 104,842.85

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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.