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Finding the Fourth Proportional to 172,360.04, 258,489.82 and 67,155.56

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Solution

The fourth proportional to 172,360.04, 258,489.82 and 67,155.56 is: 100,713.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,360.04 : 258,489.82 = 67,155.56 : x
  2. Step 2: Convert to fraction form
    172,360.04/258,489.82 = 67,155.56/x
  3. Step 3: Cross multiply
    172,360.04x = 258,489.82 × 67,155.56
  4. Step 4: Simplify right side
    172,360.04x = 17,359,028,616.40
  5. Step 5: Solve for x
    x = 17,359,028,616.40/172,360.04
  6. Step 6: Final answer
    x = 100,713.77

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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.