Home / 179,972.21-248,363.52-99,401.78

Finding the Fourth Proportional to 179,972.21, 248,363.52 and 99,401.78

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Solution

The fourth proportional to 179,972.21, 248,363.52 and 99,401.78 is: 137,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,972.21 : 248,363.52 = 99,401.78 : x
  2. Step 2: Convert to fraction form
    179,972.21/248,363.52 = 99,401.78/x
  3. Step 3: Cross multiply
    179,972.21x = 248,363.52 × 99,401.78
  4. Step 4: Simplify right side
    179,972.21x = 24,687,775,975.07
  5. Step 5: Solve for x
    x = 24,687,775,975.07/179,972.21
  6. Step 6: Final answer
    x = 137,175.49

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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.