Home / 109,780.28-151,496.43-59,479.28

Finding the Fourth Proportional to 109,780.28, 151,496.43 and 59,479.28

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Solution

The fourth proportional to 109,780.28, 151,496.43 and 59,479.28 is: 82,081.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,780.28 : 151,496.43 = 59,479.28 : x
  2. Step 2: Convert to fraction form
    109,780.28/151,496.43 = 59,479.28/x
  3. Step 3: Cross multiply
    109,780.28x = 151,496.43 × 59,479.28
  4. Step 4: Simplify right side
    109,780.28x = 9,010,898,578.97
  5. Step 5: Solve for x
    x = 9,010,898,578.97/109,780.28
  6. Step 6: Final answer
    x = 82,081.21

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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.