Home / 147,391.40-221,086.20-42,210.56

Finding the Fourth Proportional to 147,391.40, 221,086.20 and 42,210.56

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Solution

The fourth proportional to 147,391.40, 221,086.20 and 42,210.56 is: 63,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,391.40 : 221,086.20 = 42,210.56 : x
  2. Step 2: Convert to fraction form
    147,391.40/221,086.20 = 42,210.56/x
  3. Step 3: Cross multiply
    147,391.40x = 221,086.20 × 42,210.56
  4. Step 4: Simplify right side
    147,391.40x = 9,332,172,310.27
  5. Step 5: Solve for x
    x = 9,332,172,310.27/147,391.40
  6. Step 6: Final answer
    x = 63,315.58

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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.