Home / 147,385.45-221,121.23-47,543.43

Finding the Fourth Proportional to 147,385.45, 221,121.23 and 47,543.43

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Solution

The fourth proportional to 147,385.45, 221,121.23 and 47,543.43 is: 71,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,385.45 : 221,121.23 = 47,543.43 : x
  2. Step 2: Convert to fraction form
    147,385.45/221,121.23 = 47,543.43/x
  3. Step 3: Cross multiply
    147,385.45x = 221,121.23 × 47,543.43
  4. Step 4: Simplify right side
    147,385.45x = 10,512,861,720.02
  5. Step 5: Solve for x
    x = 10,512,861,720.02/147,385.45
  6. Step 6: Final answer
    x = 71,329.03

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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.