Home / 103,958.45-155,808.47-47,738.91

Finding the Fourth Proportional to 103,958.45, 155,808.47 and 47,738.91

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Solution

The fourth proportional to 103,958.45, 155,808.47 and 47,738.91 is: 71,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,958.45 : 155,808.47 = 47,738.91 : x
  2. Step 2: Convert to fraction form
    103,958.45/155,808.47 = 47,738.91/x
  3. Step 3: Cross multiply
    103,958.45x = 155,808.47 × 47,738.91
  4. Step 4: Simplify right side
    103,958.45x = 7,438,126,645.91
  5. Step 5: Solve for x
    x = 7,438,126,645.91/103,958.45
  6. Step 6: Final answer
    x = 71,549.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.