Home / 128,010.15-192,264.36-104,335.20

Finding the Fourth Proportional to 128,010.15, 192,264.36 and 104,335.20

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Solution

The fourth proportional to 128,010.15, 192,264.36 and 104,335.20 is: 156,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,010.15 : 192,264.36 = 104,335.20 : x
  2. Step 2: Convert to fraction form
    128,010.15/192,264.36 = 104,335.20/x
  3. Step 3: Cross multiply
    128,010.15x = 192,264.36 × 104,335.20
  4. Step 4: Simplify right side
    128,010.15x = 20,059,940,453.47
  5. Step 5: Solve for x
    x = 20,059,940,453.47/128,010.15
  6. Step 6: Final answer
    x = 156,705.86

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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.