Home / 207,170.32-310,765.20-74,113.60

Finding the Fourth Proportional to 207,170.32, 310,765.20 and 74,113.60

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Solution

The fourth proportional to 207,170.32, 310,765.20 and 74,113.60 is: 111,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,170.32 : 310,765.20 = 74,113.60 : x
  2. Step 2: Convert to fraction form
    207,170.32/310,765.20 = 74,113.60/x
  3. Step 3: Cross multiply
    207,170.32x = 310,765.20 × 74,113.60
  4. Step 4: Simplify right side
    207,170.32x = 23,031,927,726.72
  5. Step 5: Solve for x
    x = 23,031,927,726.72/207,170.32
  6. Step 6: Final answer
    x = 111,173.88

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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.