Home / 147,660.60-221,555.70-68,734.20

Finding the Fourth Proportional to 147,660.60, 221,555.70 and 68,734.20

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Solution

The fourth proportional to 147,660.60, 221,555.70 and 68,734.20 is: 103,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,660.60 : 221,555.70 = 68,734.20 : x
  2. Step 2: Convert to fraction form
    147,660.60/221,555.70 = 68,734.20/x
  3. Step 3: Cross multiply
    147,660.60x = 221,555.70 × 68,734.20
  4. Step 4: Simplify right side
    147,660.60x = 15,228,453,794.94
  5. Step 5: Solve for x
    x = 15,228,453,794.94/147,660.60
  6. Step 6: Final answer
    x = 103,131.46

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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.