Home / 159,177.09-219,695.55-91,239.57

Finding the Fourth Proportional to 159,177.09, 219,695.55 and 91,239.57

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Solution

The fourth proportional to 159,177.09, 219,695.55 and 91,239.57 is: 125,928.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,177.09 : 219,695.55 = 91,239.57 : x
  2. Step 2: Convert to fraction form
    159,177.09/219,695.55 = 91,239.57/x
  3. Step 3: Cross multiply
    159,177.09x = 219,695.55 × 91,239.57
  4. Step 4: Simplify right side
    159,177.09x = 20,044,927,512.91
  5. Step 5: Solve for x
    x = 20,044,927,512.91/159,177.09
  6. Step 6: Final answer
    x = 125,928.47

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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.