Home / 210,944.16-316,440.78-74,125.20

Finding the Fourth Proportional to 210,944.16, 316,440.78 and 74,125.20

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Solution

The fourth proportional to 210,944.16, 316,440.78 and 74,125.20 is: 111,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,944.16 : 316,440.78 = 74,125.20 : x
  2. Step 2: Convert to fraction form
    210,944.16/316,440.78 = 74,125.20/x
  3. Step 3: Cross multiply
    210,944.16x = 316,440.78 × 74,125.20
  4. Step 4: Simplify right side
    210,944.16x = 23,456,236,105.66
  5. Step 5: Solve for x
    x = 23,456,236,105.66/210,944.16
  6. Step 6: Final answer
    x = 111,196.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.