Home / 156,921.44-216,551.74-85,301.46

Finding the Fourth Proportional to 156,921.44, 216,551.74 and 85,301.46

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Solution

The fourth proportional to 156,921.44, 216,551.74 and 85,301.46 is: 117,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.44 : 216,551.74 = 85,301.46 : x
  2. Step 2: Convert to fraction form
    156,921.44/216,551.74 = 85,301.46/x
  3. Step 3: Cross multiply
    156,921.44x = 216,551.74 × 85,301.46
  4. Step 4: Simplify right side
    156,921.44x = 18,472,179,587.54
  5. Step 5: Solve for x
    x = 18,472,179,587.54/156,921.44
  6. Step 6: Final answer
    x = 117,716.10

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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.