Home / 88,098.80-121,513.55-80,854.23

Finding the Fourth Proportional to 88,098.80, 121,513.55 and 80,854.23

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Solution

The fourth proportional to 88,098.80, 121,513.55 and 80,854.23 is: 111,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,098.80 : 121,513.55 = 80,854.23 : x
  2. Step 2: Convert to fraction form
    88,098.80/121,513.55 = 80,854.23/x
  3. Step 3: Cross multiply
    88,098.80x = 121,513.55 × 80,854.23
  4. Step 4: Simplify right side
    88,098.80x = 9,824,884,317.68
  5. Step 5: Solve for x
    x = 9,824,884,317.68/88,098.80
  6. Step 6: Final answer
    x = 111,521.20

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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.