Home / 141,570.47-195,371.90-81,152.55

Finding the Fourth Proportional to 141,570.47, 195,371.90 and 81,152.55

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Solution

The fourth proportional to 141,570.47, 195,371.90 and 81,152.55 is: 111,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,570.47 : 195,371.90 = 81,152.55 : x
  2. Step 2: Convert to fraction form
    141,570.47/195,371.90 = 81,152.55/x
  3. Step 3: Cross multiply
    141,570.47x = 195,371.90 × 81,152.55
  4. Step 4: Simplify right side
    141,570.47x = 15,854,927,781.90
  5. Step 5: Solve for x
    x = 15,854,927,781.90/141,570.47
  6. Step 6: Final answer
    x = 111,993.18

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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.