Home / 172,219.48-237,778.84-154,013.72

Finding the Fourth Proportional to 172,219.48, 237,778.84 and 154,013.72

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Solution

The fourth proportional to 172,219.48, 237,778.84 and 154,013.72 is: 212,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,219.48 : 237,778.84 = 154,013.72 : x
  2. Step 2: Convert to fraction form
    172,219.48/237,778.84 = 154,013.72/x
  3. Step 3: Cross multiply
    172,219.48x = 237,778.84 × 154,013.72
  4. Step 4: Simplify right side
    172,219.48x = 36,621,203,685.68
  5. Step 5: Solve for x
    x = 36,621,203,685.68/172,219.48
  6. Step 6: Final answer
    x = 212,642.63

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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.