Home / 117,062.25-161,506.36-76,207.73

Finding the Fourth Proportional to 117,062.25, 161,506.36 and 76,207.73

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Solution

The fourth proportional to 117,062.25, 161,506.36 and 76,207.73 is: 105,140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,062.25 : 161,506.36 = 76,207.73 : x
  2. Step 2: Convert to fraction form
    117,062.25/161,506.36 = 76,207.73/x
  3. Step 3: Cross multiply
    117,062.25x = 161,506.36 × 76,207.73
  4. Step 4: Simplify right side
    117,062.25x = 12,308,032,363.89
  5. Step 5: Solve for x
    x = 12,308,032,363.89/117,062.25
  6. Step 6: Final answer
    x = 105,140.92

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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.