Home / 156,851.75-216,456.61-85,232.16

Finding the Fourth Proportional to 156,851.75, 216,456.61 and 85,232.16

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Solution

The fourth proportional to 156,851.75, 216,456.61 and 85,232.16 is: 117,621.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,851.75 : 216,456.61 = 85,232.16 : x
  2. Step 2: Convert to fraction form
    156,851.75/216,456.61 = 85,232.16/x
  3. Step 3: Cross multiply
    156,851.75x = 216,456.61 × 85,232.16
  4. Step 4: Simplify right side
    156,851.75x = 18,449,063,797.64
  5. Step 5: Solve for x
    x = 18,449,063,797.64/156,851.75
  6. Step 6: Final answer
    x = 117,621.03

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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.