Home / 121,658.26-166,669.03-117,109.76

Finding the Fourth Proportional to 121,658.26, 166,669.03 and 117,109.76

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Solution

The fourth proportional to 121,658.26, 166,669.03 and 117,109.76 is: 160,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,658.26 : 166,669.03 = 117,109.76 : x
  2. Step 2: Convert to fraction form
    121,658.26/166,669.03 = 117,109.76/x
  3. Step 3: Cross multiply
    121,658.26x = 166,669.03 × 117,109.76
  4. Step 4: Simplify right side
    121,658.26x = 19,518,569,517.18
  5. Step 5: Solve for x
    x = 19,518,569,517.18/121,658.26
  6. Step 6: Final answer
    x = 160,437.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.