Home / 147,680.80-203,778.96-84,015.52

Finding the Fourth Proportional to 147,680.80, 203,778.96 and 84,015.52

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Solution

The fourth proportional to 147,680.80, 203,778.96 and 84,015.52 is: 115,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,680.80 : 203,778.96 = 84,015.52 : x
  2. Step 2: Convert to fraction form
    147,680.80/203,778.96 = 84,015.52/x
  3. Step 3: Cross multiply
    147,680.80x = 203,778.96 × 84,015.52
  4. Step 4: Simplify right side
    147,680.80x = 17,120,595,289.46
  5. Step 5: Solve for x
    x = 17,120,595,289.46/147,680.80
  6. Step 6: Final answer
    x = 115,929.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.