Home / 103,498.20-155,247.30-47,401.65

Finding the Fourth Proportional to 103,498.20, 155,247.30 and 47,401.65

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Solution

The fourth proportional to 103,498.20, 155,247.30 and 47,401.65 is: 71,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,498.20 : 155,247.30 = 47,401.65 : x
  2. Step 2: Convert to fraction form
    103,498.20/155,247.30 = 47,401.65/x
  3. Step 3: Cross multiply
    103,498.20x = 155,247.30 × 47,401.65
  4. Step 4: Simplify right side
    103,498.20x = 7,358,978,178.05
  5. Step 5: Solve for x
    x = 7,358,978,178.05/103,498.20
  6. Step 6: Final answer
    x = 71,102.48

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1.5x scale

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.