Home / 141,998.40-195,957.36-78,343.20

Finding the Fourth Proportional to 141,998.40, 195,957.36 and 78,343.20

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Solution

The fourth proportional to 141,998.40, 195,957.36 and 78,343.20 is: 108,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,998.40 : 195,957.36 = 78,343.20 : x
  2. Step 2: Convert to fraction form
    141,998.40/195,957.36 = 78,343.20/x
  3. Step 3: Cross multiply
    141,998.40x = 195,957.36 × 78,343.20
  4. Step 4: Simplify right side
    141,998.40x = 15,351,926,645.95
  5. Step 5: Solve for x
    x = 15,351,926,645.95/141,998.40
  6. Step 6: Final answer
    x = 108,113.38

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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.