Home / 103,358.76-142,638.53-58,044.80

Finding the Fourth Proportional to 103,358.76, 142,638.53 and 58,044.80

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Solution

The fourth proportional to 103,358.76, 142,638.53 and 58,044.80 is: 80,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,358.76 : 142,638.53 = 58,044.80 : x
  2. Step 2: Convert to fraction form
    103,358.76/142,638.53 = 58,044.80/x
  3. Step 3: Cross multiply
    103,358.76x = 142,638.53 × 58,044.80
  4. Step 4: Simplify right side
    103,358.76x = 8,279,425,420.64
  5. Step 5: Solve for x
    x = 8,279,425,420.64/103,358.76
  6. Step 6: Final answer
    x = 80,103.76

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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.