Home / 172,178.40-237,621.04-100,581.44

Finding the Fourth Proportional to 172,178.40, 237,621.04 and 100,581.44

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Solution

The fourth proportional to 172,178.40, 237,621.04 and 100,581.44 is: 138,811.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,178.40 : 237,621.04 = 100,581.44 : x
  2. Step 2: Convert to fraction form
    172,178.40/237,621.04 = 100,581.44/x
  3. Step 3: Cross multiply
    172,178.40x = 237,621.04 × 100,581.44
  4. Step 4: Simplify right side
    172,178.40x = 23,900,266,377.50
  5. Step 5: Solve for x
    x = 23,900,266,377.50/172,178.40
  6. Step 6: Final answer
    x = 138,811.06

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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.