Home / 130,864.47-180,546.98-85,568.97

Finding the Fourth Proportional to 130,864.47, 180,546.98 and 85,568.97

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Solution

The fourth proportional to 130,864.47, 180,546.98 and 85,568.97 is: 118,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,864.47 : 180,546.98 = 85,568.97 : x
  2. Step 2: Convert to fraction form
    130,864.47/180,546.98 = 85,568.97/x
  3. Step 3: Cross multiply
    130,864.47x = 180,546.98 × 85,568.97
  4. Step 4: Simplify right side
    130,864.47x = 15,449,218,331.20
  5. Step 5: Solve for x
    x = 15,449,218,331.20/130,864.47
  6. Step 6: Final answer
    x = 118,055.10

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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.