Home / 128,057.02-192,036.30-88,494.19

Finding the Fourth Proportional to 128,057.02, 192,036.30 and 88,494.19

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Solution

The fourth proportional to 128,057.02, 192,036.30 and 88,494.19 is: 132,707.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,057.02 : 192,036.30 = 88,494.19 : x
  2. Step 2: Convert to fraction form
    128,057.02/192,036.30 = 88,494.19/x
  3. Step 3: Cross multiply
    128,057.02x = 192,036.30 × 88,494.19
  4. Step 4: Simplify right side
    128,057.02x = 16,994,096,819.10
  5. Step 5: Solve for x
    x = 16,994,096,819.10/128,057.02
  6. Step 6: Final answer
    x = 132,707.26

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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.