Home / 141,539.89-195,330.42-81,122.19

Finding the Fourth Proportional to 141,539.89, 195,330.42 and 81,122.19

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Solution

The fourth proportional to 141,539.89, 195,330.42 and 81,122.19 is: 111,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,539.89 : 195,330.42 = 81,122.19 : x
  2. Step 2: Convert to fraction form
    141,539.89/195,330.42 = 81,122.19/x
  3. Step 3: Cross multiply
    141,539.89x = 195,330.42 × 81,122.19
  4. Step 4: Simplify right side
    141,539.89x = 15,845,631,444.02
  5. Step 5: Solve for x
    x = 15,845,631,444.02/141,539.89
  6. Step 6: Final answer
    x = 111,951.70

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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.