Home / 121,659.26-166,670.39-117,110.76

Finding the Fourth Proportional to 121,659.26, 166,670.39 and 117,110.76

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Solution

The fourth proportional to 121,659.26, 166,670.39 and 117,110.76 is: 160,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,659.26 : 166,670.39 = 117,110.76 : x
  2. Step 2: Convert to fraction form
    121,659.26/166,670.39 = 117,110.76/x
  3. Step 3: Cross multiply
    121,659.26x = 166,670.39 × 117,110.76
  4. Step 4: Simplify right side
    121,659.26x = 19,518,896,042.40
  5. Step 5: Solve for x
    x = 19,518,896,042.40/121,659.26
  6. Step 6: Final answer
    x = 160,439.05

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1.5x scale

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.