Home / 239,153.15-358,780.32-79,220.03

Finding the Fourth Proportional to 239,153.15, 358,780.32 and 79,220.03

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Solution

The fourth proportional to 239,153.15, 358,780.32 and 79,220.03 is: 118,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,153.15 : 358,780.32 = 79,220.03 : x
  2. Step 2: Convert to fraction form
    239,153.15/358,780.32 = 79,220.03/x
  3. Step 3: Cross multiply
    239,153.15x = 358,780.32 × 79,220.03
  4. Step 4: Simplify right side
    239,153.15x = 28,422,585,919.91
  5. Step 5: Solve for x
    x = 28,422,585,919.91/239,153.15
  6. Step 6: Final answer
    x = 118,846.80

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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.