Home / 141,817.87-195,708.69-77,287.12

Finding the Fourth Proportional to 141,817.87, 195,708.69 and 77,287.12

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Solution

The fourth proportional to 141,817.87, 195,708.69 and 77,287.12 is: 106,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,817.87 : 195,708.69 = 77,287.12 : x
  2. Step 2: Convert to fraction form
    141,817.87/195,708.69 = 77,287.12/x
  3. Step 3: Cross multiply
    141,817.87x = 195,708.69 × 77,287.12
  4. Step 4: Simplify right side
    141,817.87x = 15,125,761,790.04
  5. Step 5: Solve for x
    x = 15,125,761,790.04/141,817.87
  6. Step 6: Final answer
    x = 106,656.25

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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.