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Finding the Fourth Proportional to 172,952.17, 259,305.72 and 76,836.59

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Solution

The fourth proportional to 172,952.17, 259,305.72 and 76,836.59 is: 115,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,952.17 : 259,305.72 = 76,836.59 : x
  2. Step 2: Convert to fraction form
    172,952.17/259,305.72 = 76,836.59/x
  3. Step 3: Cross multiply
    172,952.17x = 259,305.72 × 76,836.59
  4. Step 4: Simplify right side
    172,952.17x = 19,924,167,292.29
  5. Step 5: Solve for x
    x = 19,924,167,292.29/172,952.17
  6. Step 6: Final answer
    x = 115,200.45

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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.