Home / 141,787.02-195,648.30-81,349.68

Finding the Fourth Proportional to 141,787.02, 195,648.30 and 81,349.68

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Solution

The fourth proportional to 141,787.02, 195,648.30 and 81,349.68 is: 112,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,787.02 : 195,648.30 = 81,349.68 : x
  2. Step 2: Convert to fraction form
    141,787.02/195,648.30 = 81,349.68/x
  3. Step 3: Cross multiply
    141,787.02x = 195,648.30 × 81,349.68
  4. Step 4: Simplify right side
    141,787.02x = 15,915,926,597.54
  5. Step 5: Solve for x
    x = 15,915,926,597.54/141,787.02
  6. Step 6: Final answer
    x = 112,252.35

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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.