Home / 147,785.15-221,708.85-47,937.56

Finding the Fourth Proportional to 147,785.15, 221,708.85 and 47,937.56

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Solution

The fourth proportional to 147,785.15, 221,708.85 and 47,937.56 is: 71,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,785.15 : 221,708.85 = 47,937.56 : x
  2. Step 2: Convert to fraction form
    147,785.15/221,708.85 = 47,937.56/x
  3. Step 3: Cross multiply
    147,785.15x = 221,708.85 × 47,937.56
  4. Step 4: Simplify right side
    147,785.15x = 10,628,180,190.86
  5. Step 5: Solve for x
    x = 10,628,180,190.86/147,785.15
  6. Step 6: Final answer
    x = 71,916.43

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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.