Home / 121,588.69-182,447.25-86,278.18

Finding the Fourth Proportional to 121,588.69, 182,447.25 and 86,278.18

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Solution

The fourth proportional to 121,588.69, 182,447.25 and 86,278.18 is: 129,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,588.69 : 182,447.25 = 86,278.18 : x
  2. Step 2: Convert to fraction form
    121,588.69/182,447.25 = 86,278.18/x
  3. Step 3: Cross multiply
    121,588.69x = 182,447.25 × 86,278.18
  4. Step 4: Simplify right side
    121,588.69x = 15,741,216,676.01
  5. Step 5: Solve for x
    x = 15,741,216,676.01/121,588.69
  6. Step 6: Final answer
    x = 129,462.84

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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.