Home / 147,821.80-221,711.10-42,629.80

Finding the Fourth Proportional to 147,821.80, 221,711.10 and 42,629.80

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Solution

The fourth proportional to 147,821.80, 221,711.10 and 42,629.80 is: 63,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,821.80 : 221,711.10 = 42,629.80 : x
  2. Step 2: Convert to fraction form
    147,821.80/221,711.10 = 42,629.80/x
  3. Step 3: Cross multiply
    147,821.80x = 221,711.10 × 42,629.80
  4. Step 4: Simplify right side
    147,821.80x = 9,451,499,850.78
  5. Step 5: Solve for x
    x = 9,451,499,850.78/147,821.80
  6. Step 6: Final answer
    x = 63,938.47

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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.