Home / 141,984.83-195,939.07-78,322.61

Finding the Fourth Proportional to 141,984.83, 195,939.07 and 78,322.61

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Solution

The fourth proportional to 141,984.83, 195,939.07 and 78,322.61 is: 108,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,984.83 : 195,939.07 = 78,322.61 : x
  2. Step 2: Convert to fraction form
    141,984.83/195,939.07 = 78,322.61/x
  3. Step 3: Cross multiply
    141,984.83x = 195,939.07 × 78,322.61
  4. Step 4: Simplify right side
    141,984.83x = 15,346,459,657.41
  5. Step 5: Solve for x
    x = 15,346,459,657.41/141,984.83
  6. Step 6: Final answer
    x = 108,085.20

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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.