Home / 159,131.74-219,601.53-91,170.70

Finding the Fourth Proportional to 159,131.74, 219,601.53 and 91,170.70

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Solution

The fourth proportional to 159,131.74, 219,601.53 and 91,170.70 is: 125,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,131.74 : 219,601.53 = 91,170.70 : x
  2. Step 2: Convert to fraction form
    159,131.74/219,601.53 = 91,170.70/x
  3. Step 3: Cross multiply
    159,131.74x = 219,601.53 × 91,170.70
  4. Step 4: Simplify right side
    159,131.74x = 20,021,225,211.17
  5. Step 5: Solve for x
    x = 20,021,225,211.17/159,131.74
  6. Step 6: Final answer
    x = 125,815.41

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1.5x scale

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.