Home / 141,686.78-195,533.80-81,274.46

Finding the Fourth Proportional to 141,686.78, 195,533.80 and 81,274.46

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Solution

The fourth proportional to 141,686.78, 195,533.80 and 81,274.46 is: 112,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,686.78 : 195,533.80 = 81,274.46 : x
  2. Step 2: Convert to fraction form
    141,686.78/195,533.80 = 81,274.46/x
  3. Step 3: Cross multiply
    141,686.78x = 195,533.80 × 81,274.46
  4. Step 4: Simplify right side
    141,686.78x = 15,891,904,006.75
  5. Step 5: Solve for x
    x = 15,891,904,006.75/141,686.78
  6. Step 6: Final answer
    x = 112,162.22

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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.