Home / 141,487.49-195,254.37-77,825.75

Finding the Fourth Proportional to 141,487.49, 195,254.37 and 77,825.75

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Solution

The fourth proportional to 141,487.49, 195,254.37 and 77,825.75 is: 107,400.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,487.49 : 195,254.37 = 77,825.75 : x
  2. Step 2: Convert to fraction form
    141,487.49/195,254.37 = 77,825.75/x
  3. Step 3: Cross multiply
    141,487.49x = 195,254.37 × 77,825.75
  4. Step 4: Simplify right side
    141,487.49x = 15,195,817,786.03
  5. Step 5: Solve for x
    x = 15,195,817,786.03/141,487.49
  6. Step 6: Final answer
    x = 107,400.43

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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.