Home / 141,808.32-195,686.26-78,146.12

Finding the Fourth Proportional to 141,808.32, 195,686.26 and 78,146.12

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Solution

The fourth proportional to 141,808.32, 195,686.26 and 78,146.12 is: 107,836.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.32 : 195,686.26 = 78,146.12 : x
  2. Step 2: Convert to fraction form
    141,808.32/195,686.26 = 78,146.12/x
  3. Step 3: Cross multiply
    141,808.32x = 195,686.26 × 78,146.12
  4. Step 4: Simplify right side
    141,808.32x = 15,292,121,956.31
  5. Step 5: Solve for x
    x = 15,292,121,956.31/141,808.32
  6. Step 6: Final answer
    x = 107,836.56

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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.