Home / 115,196.76-159,033.20-80,847.19

Finding the Fourth Proportional to 115,196.76, 159,033.20 and 80,847.19

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Solution

The fourth proportional to 115,196.76, 159,033.20 and 80,847.19 is: 111,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,196.76 : 159,033.20 = 80,847.19 : x
  2. Step 2: Convert to fraction form
    115,196.76/159,033.20 = 80,847.19/x
  3. Step 3: Cross multiply
    115,196.76x = 159,033.20 × 80,847.19
  4. Step 4: Simplify right side
    115,196.76x = 12,857,387,336.71
  5. Step 5: Solve for x
    x = 12,857,387,336.71/115,196.76
  6. Step 6: Final answer
    x = 111,612.40

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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.