Home / 141,776.02-195,679.20-81,387.46

Finding the Fourth Proportional to 141,776.02, 195,679.20 and 81,387.46

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Solution

The fourth proportional to 141,776.02, 195,679.20 and 81,387.46 is: 112,330.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,776.02 : 195,679.20 = 81,387.46 : x
  2. Step 2: Convert to fraction form
    141,776.02/195,679.20 = 81,387.46/x
  3. Step 3: Cross multiply
    141,776.02x = 195,679.20 × 81,387.46
  4. Step 4: Simplify right side
    141,776.02x = 15,925,833,062.83
  5. Step 5: Solve for x
    x = 15,925,833,062.83/141,776.02
  6. Step 6: Final answer
    x = 112,330.94

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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.