Home / 88,140.60-131,918.52-80,261.32

Finding the Fourth Proportional to 88,140.60, 131,918.52 and 80,261.32

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Solution

The fourth proportional to 88,140.60, 131,918.52 and 80,261.32 is: 120,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,140.60 : 131,918.52 = 80,261.32 : x
  2. Step 2: Convert to fraction form
    88,140.60/131,918.52 = 80,261.32/x
  3. Step 3: Cross multiply
    88,140.60x = 131,918.52 × 80,261.32
  4. Step 4: Simplify right side
    88,140.60x = 10,587,954,547.65
  5. Step 5: Solve for x
    x = 10,587,954,547.65/88,140.60
  6. Step 6: Final answer
    x = 120,125.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.