Home / 172,091.20-258,036.56-66,787.16

Finding the Fourth Proportional to 172,091.20, 258,036.56 and 66,787.16

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Solution

The fourth proportional to 172,091.20, 258,036.56 and 66,787.16 is: 100,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,091.20 : 258,036.56 = 66,787.16 : x
  2. Step 2: Convert to fraction form
    172,091.20/258,036.56 = 66,787.16/x
  3. Step 3: Cross multiply
    172,091.20x = 258,036.56 × 66,787.16
  4. Step 4: Simplify right side
    172,091.20x = 17,233,529,018.57
  5. Step 5: Solve for x
    x = 17,233,529,018.57/172,091.20
  6. Step 6: Final answer
    x = 100,141.84

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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.