Home / 130,105.64-179,546.08-72,747.02

Finding the Fourth Proportional to 130,105.64, 179,546.08 and 72,747.02

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Solution

The fourth proportional to 130,105.64, 179,546.08 and 72,747.02 is: 100,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,105.64 : 179,546.08 = 72,747.02 : x
  2. Step 2: Convert to fraction form
    130,105.64/179,546.08 = 72,747.02/x
  3. Step 3: Cross multiply
    130,105.64x = 179,546.08 × 72,747.02
  4. Step 4: Simplify right side
    130,105.64x = 13,061,442,272.68
  5. Step 5: Solve for x
    x = 13,061,442,272.68/130,105.64
  6. Step 6: Final answer
    x = 100,391.05

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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.