Home / 141,552.40-195,320.01-81,111.43

Finding the Fourth Proportional to 141,552.40, 195,320.01 and 81,111.43

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Solution

The fourth proportional to 141,552.40, 195,320.01 and 81,111.43 is: 111,920.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,552.40 : 195,320.01 = 81,111.43 : x
  2. Step 2: Convert to fraction form
    141,552.40/195,320.01 = 81,111.43/x
  3. Step 3: Cross multiply
    141,552.40x = 195,320.01 × 81,111.43
  4. Step 4: Simplify right side
    141,552.40x = 15,842,685,318.71
  5. Step 5: Solve for x
    x = 15,842,685,318.71/141,552.40
  6. Step 6: Final answer
    x = 111,920.99

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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.