Home / 192,311.66-288,531.59-121,152.15

Finding the Fourth Proportional to 192,311.66, 288,531.59 and 121,152.15

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Solution

The fourth proportional to 192,311.66, 288,531.59 and 121,152.15 is: 181,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,311.66 : 288,531.59 = 121,152.15 : x
  2. Step 2: Convert to fraction form
    192,311.66/288,531.59 = 121,152.15/x
  3. Step 3: Cross multiply
    192,311.66x = 288,531.59 × 121,152.15
  4. Step 4: Simplify right side
    192,311.66x = 34,956,221,865.66
  5. Step 5: Solve for x
    x = 34,956,221,865.66/192,311.66
  6. Step 6: Final answer
    x = 181,768.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.