Home / 109,453.28-151,034.45-80,788.59

Finding the Fourth Proportional to 109,453.28, 151,034.45 and 80,788.59

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Solution

The fourth proportional to 109,453.28, 151,034.45 and 80,788.59 is: 111,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,453.28 : 151,034.45 = 80,788.59 : x
  2. Step 2: Convert to fraction form
    109,453.28/151,034.45 = 80,788.59/x
  3. Step 3: Cross multiply
    109,453.28x = 151,034.45 × 80,788.59
  4. Step 4: Simplify right side
    109,453.28x = 12,201,859,852.98
  5. Step 5: Solve for x
    x = 12,201,859,852.98/109,453.28
  6. Step 6: Final answer
    x = 111,480.08

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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.