Home / 141,521.16-195,276.96-81,080.16

Finding the Fourth Proportional to 141,521.16, 195,276.96 and 81,080.16

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Solution

The fourth proportional to 141,521.16, 195,276.96 and 81,080.16 is: 111,877.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,521.16 : 195,276.96 = 81,080.16 : x
  2. Step 2: Convert to fraction form
    141,521.16/195,276.96 = 81,080.16/x
  3. Step 3: Cross multiply
    141,521.16x = 195,276.96 × 81,080.16
  4. Step 4: Simplify right side
    141,521.16x = 15,833,087,161.11
  5. Step 5: Solve for x
    x = 15,833,087,161.11/141,521.16
  6. Step 6: Final answer
    x = 111,877.88

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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.