Home / 141,512.76-195,292.80-77,855.40

Finding the Fourth Proportional to 141,512.76, 195,292.80 and 77,855.40

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Solution

The fourth proportional to 141,512.76, 195,292.80 and 77,855.40 is: 107,443.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,512.76 : 195,292.80 = 77,855.40 : x
  2. Step 2: Convert to fraction form
    141,512.76/195,292.80 = 77,855.40/x
  3. Step 3: Cross multiply
    141,512.76x = 195,292.80 × 77,855.40
  4. Step 4: Simplify right side
    141,512.76x = 15,204,599,061.12
  5. Step 5: Solve for x
    x = 15,204,599,061.12/141,512.76
  6. Step 6: Final answer
    x = 107,443.31

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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.