Home / 141,456.07-195,211.31-81,026.68

Finding the Fourth Proportional to 141,456.07, 195,211.31 and 81,026.68

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Solution

The fourth proportional to 141,456.07, 195,211.31 and 81,026.68 is: 111,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,456.07 : 195,211.31 = 81,026.68 : x
  2. Step 2: Convert to fraction form
    141,456.07/195,211.31 = 81,026.68/x
  3. Step 3: Cross multiply
    141,456.07x = 195,211.31 × 81,026.68
  4. Step 4: Simplify right side
    141,456.07x = 15,817,324,347.75
  5. Step 5: Solve for x
    x = 15,817,324,347.75/141,456.07
  6. Step 6: Final answer
    x = 111,817.93

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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.