Home / 109,780.20-151,496.82-59,479.16

Finding the Fourth Proportional to 109,780.20, 151,496.82 and 59,479.16

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Solution

The fourth proportional to 109,780.20, 151,496.82 and 59,479.16 is: 82,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,780.20 : 151,496.82 = 59,479.16 : x
  2. Step 2: Convert to fraction form
    109,780.20/151,496.82 = 59,479.16/x
  3. Step 3: Cross multiply
    109,780.20x = 151,496.82 × 59,479.16
  4. Step 4: Simplify right side
    109,780.20x = 9,010,903,596.27
  5. Step 5: Solve for x
    x = 9,010,903,596.27/109,780.20
  6. Step 6: Final answer
    x = 82,081.32

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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.