Home / 113,885.60-157,150.18-66,129.60

Finding the Fourth Proportional to 113,885.60, 157,150.18 and 66,129.60

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Solution

The fourth proportional to 113,885.60, 157,150.18 and 66,129.60 is: 91,251.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,885.60 : 157,150.18 = 66,129.60 : x
  2. Step 2: Convert to fraction form
    113,885.60/157,150.18 = 66,129.60/x
  3. Step 3: Cross multiply
    113,885.60x = 157,150.18 × 66,129.60
  4. Step 4: Simplify right side
    113,885.60x = 10,392,278,543.33
  5. Step 5: Solve for x
    x = 10,392,278,543.33/113,885.60
  6. Step 6: Final answer
    x = 91,251.91

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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.