Home / 113,884.12-157,160.10-66,140.55

Finding the Fourth Proportional to 113,884.12, 157,160.10 and 66,140.55

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Solution

The fourth proportional to 113,884.12, 157,160.10 and 66,140.55 is: 91,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,884.12 : 157,160.10 = 66,140.55 : x
  2. Step 2: Convert to fraction form
    113,884.12/157,160.10 = 66,140.55/x
  3. Step 3: Cross multiply
    113,884.12x = 157,160.10 × 66,140.55
  4. Step 4: Simplify right side
    113,884.12x = 10,394,655,452.06
  5. Step 5: Solve for x
    x = 10,394,655,452.06/113,884.12
  6. Step 6: Final answer
    x = 91,273.97

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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.