Home / 141,243.51-194,915.20-76,712.02

Finding the Fourth Proportional to 141,243.51, 194,915.20 and 76,712.02

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Solution

The fourth proportional to 141,243.51, 194,915.20 and 76,712.02 is: 105,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,243.51 : 194,915.20 = 76,712.02 : x
  2. Step 2: Convert to fraction form
    141,243.51/194,915.20 = 76,712.02/x
  3. Step 3: Cross multiply
    141,243.51x = 194,915.20 × 76,712.02
  4. Step 4: Simplify right side
    141,243.51x = 14,952,338,720.70
  5. Step 5: Solve for x
    x = 14,952,338,720.70/141,243.51
  6. Step 6: Final answer
    x = 105,862.13

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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.