Home / 141,505.77-195,305.85-81,116.93

Finding the Fourth Proportional to 141,505.77, 195,305.85 and 81,116.93

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Solution

The fourth proportional to 141,505.77, 195,305.85 and 81,116.93 is: 111,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,505.77 : 195,305.85 = 81,116.93 : x
  2. Step 2: Convert to fraction form
    141,505.77/195,305.85 = 81,116.93/x
  3. Step 3: Cross multiply
    141,505.77x = 195,305.85 × 81,116.93
  4. Step 4: Simplify right side
    141,505.77x = 15,842,610,963.04
  5. Step 5: Solve for x
    x = 15,842,610,963.04/141,505.77
  6. Step 6: Final answer
    x = 111,957.35

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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.