Home / 192,928.90-289,393.47-80,547.86

Finding the Fourth Proportional to 192,928.90, 289,393.47 and 80,547.86

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Solution

The fourth proportional to 192,928.90, 289,393.47 and 80,547.86 is: 120,821.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,928.90 : 289,393.47 = 80,547.86 : x
  2. Step 2: Convert to fraction form
    192,928.90/289,393.47 = 80,547.86/x
  3. Step 3: Cross multiply
    192,928.90x = 289,393.47 × 80,547.86
  4. Step 4: Simplify right side
    192,928.90x = 23,310,024,706.47
  5. Step 5: Solve for x
    x = 23,310,024,706.47/192,928.90
  6. Step 6: Final answer
    x = 120,821.84

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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.