Home / 141,816.60-195,715.56-78,154.32

Finding the Fourth Proportional to 141,816.60, 195,715.56 and 78,154.32

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Solution

The fourth proportional to 141,816.60, 195,715.56 and 78,154.32 is: 107,857.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,816.60 : 195,715.56 = 78,154.32 : x
  2. Step 2: Convert to fraction form
    141,816.60/195,715.56 = 78,154.32/x
  3. Step 3: Cross multiply
    141,816.60x = 195,715.56 × 78,154.32
  4. Step 4: Simplify right side
    141,816.60x = 15,296,016,505.22
  5. Step 5: Solve for x
    x = 15,296,016,505.22/141,816.60
  6. Step 6: Final answer
    x = 107,857.73

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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.