Home / 141,904.71-195,830.19-78,244.92

Finding the Fourth Proportional to 141,904.71, 195,830.19 and 78,244.92

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Solution

The fourth proportional to 141,904.71, 195,830.19 and 78,244.92 is: 107,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,904.71 : 195,830.19 = 78,244.92 : x
  2. Step 2: Convert to fraction form
    141,904.71/195,830.19 = 78,244.92/x
  3. Step 3: Cross multiply
    141,904.71x = 195,830.19 × 78,244.92
  4. Step 4: Simplify right side
    141,904.71x = 15,322,717,550.13
  5. Step 5: Solve for x
    x = 15,322,717,550.13/141,904.71
  6. Step 6: Final answer
    x = 107,978.92

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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.