Home / 121,504.10-182,256.15-86,074.70

Finding the Fourth Proportional to 121,504.10, 182,256.15 and 86,074.70

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Solution

The fourth proportional to 121,504.10, 182,256.15 and 86,074.70 is: 129,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,504.10 : 182,256.15 = 86,074.70 : x
  2. Step 2: Convert to fraction form
    121,504.10/182,256.15 = 86,074.70/x
  3. Step 3: Cross multiply
    121,504.10x = 182,256.15 × 86,074.70
  4. Step 4: Simplify right side
    121,504.10x = 15,687,643,434.41
  5. Step 5: Solve for x
    x = 15,687,643,434.41/121,504.10
  6. Step 6: Final answer
    x = 129,112.05

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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.