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Finding the Fourth Proportional to 172,341.84, 237,988.62 and 129,826.56

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Solution

The fourth proportional to 172,341.84, 237,988.62 and 129,826.56 is: 179,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,341.84 : 237,988.62 = 129,826.56 : x
  2. Step 2: Convert to fraction form
    172,341.84/237,988.62 = 129,826.56/x
  3. Step 3: Cross multiply
    172,341.84x = 237,988.62 × 129,826.56
  4. Step 4: Simplify right side
    172,341.84x = 30,897,243,853.75
  5. Step 5: Solve for x
    x = 30,897,243,853.75/172,341.84
  6. Step 6: Final answer
    x = 179,278.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.