Home / 239,154.15-358,781.82-79,221.03

Finding the Fourth Proportional to 239,154.15, 358,781.82 and 79,221.03

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Solution

The fourth proportional to 239,154.15, 358,781.82 and 79,221.03 is: 118,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,154.15 : 358,781.82 = 79,221.03 : x
  2. Step 2: Convert to fraction form
    239,154.15/358,781.82 = 79,221.03/x
  3. Step 3: Cross multiply
    239,154.15x = 358,781.82 × 79,221.03
  4. Step 4: Simplify right side
    239,154.15x = 28,423,065,325.67
  5. Step 5: Solve for x
    x = 28,423,065,325.67/239,154.15
  6. Step 6: Final answer
    x = 118,848.30

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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.