Home / 175,849.78-242,667.04-100,398.28

Finding the Fourth Proportional to 175,849.78, 242,667.04 and 100,398.28

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Solution

The fourth proportional to 175,849.78, 242,667.04 and 100,398.28 is: 138,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,849.78 : 242,667.04 = 100,398.28 : x
  2. Step 2: Convert to fraction form
    175,849.78/242,667.04 = 100,398.28/x
  3. Step 3: Cross multiply
    175,849.78x = 242,667.04 × 100,398.28
  4. Step 4: Simplify right side
    175,849.78x = 24,363,353,428.69
  5. Step 5: Solve for x
    x = 24,363,353,428.69/175,849.78
  6. Step 6: Final answer
    x = 138,546.40

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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.