Home / 121,660.26-166,671.76-117,111.76

Finding the Fourth Proportional to 121,660.26, 166,671.76 and 117,111.76

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Solution

The fourth proportional to 121,660.26, 166,671.76 and 117,111.76 is: 160,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,660.26 : 166,671.76 = 117,111.76 : x
  2. Step 2: Convert to fraction form
    121,660.26/166,671.76 = 117,111.76/x
  3. Step 3: Cross multiply
    121,660.26x = 166,671.76 × 117,111.76
  4. Step 4: Simplify right side
    121,660.26x = 19,519,223,155.90
  5. Step 5: Solve for x
    x = 19,519,223,155.90/121,660.26
  6. Step 6: Final answer
    x = 160,440.42

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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.