Home / 103,680.49-155,519.70-47,504.66

Finding the Fourth Proportional to 103,680.49, 155,519.70 and 47,504.66

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Solution

The fourth proportional to 103,680.49, 155,519.70 and 47,504.66 is: 71,256.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680.49 : 155,519.70 = 47,504.66 : x
  2. Step 2: Convert to fraction form
    103,680.49/155,519.70 = 47,504.66/x
  3. Step 3: Cross multiply
    103,680.49x = 155,519.70 × 47,504.66
  4. Step 4: Simplify right side
    103,680.49x = 7,387,910,471.80
  5. Step 5: Solve for x
    x = 7,387,910,471.80/103,680.49
  6. Step 6: Final answer
    x = 71,256.52

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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.