Home / 107,741.52-161,279.46-70,220.88

Finding the Fourth Proportional to 107,741.52, 161,279.46 and 70,220.88

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Solution

The fourth proportional to 107,741.52, 161,279.46 and 70,220.88 is: 105,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,741.52 : 161,279.46 = 70,220.88 : x
  2. Step 2: Convert to fraction form
    107,741.52/161,279.46 = 70,220.88/x
  3. Step 3: Cross multiply
    107,741.52x = 161,279.46 × 70,220.88
  4. Step 4: Simplify right side
    107,741.52x = 11,325,185,607.12
  5. Step 5: Solve for x
    x = 11,325,185,607.12/107,741.52
  6. Step 6: Final answer
    x = 105,114.40

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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.