Home / 102,615.72-141,608.35-57,294.47

Finding the Fourth Proportional to 102,615.72, 141,608.35 and 57,294.47

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Solution

The fourth proportional to 102,615.72, 141,608.35 and 57,294.47 is: 79,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,615.72 : 141,608.35 = 57,294.47 : x
  2. Step 2: Convert to fraction form
    102,615.72/141,608.35 = 57,294.47/x
  3. Step 3: Cross multiply
    102,615.72x = 141,608.35 × 57,294.47
  4. Step 4: Simplify right side
    102,615.72x = 8,113,375,786.46
  5. Step 5: Solve for x
    x = 8,113,375,786.46/102,615.72
  6. Step 6: Final answer
    x = 79,065.62

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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.