Home / 143,223.75-197,648.91-79,567.47

Finding the Fourth Proportional to 143,223.75, 197,648.91 and 79,567.47

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Solution

The fourth proportional to 143,223.75, 197,648.91 and 79,567.47 is: 109,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,223.75 : 197,648.91 = 79,567.47 : x
  2. Step 2: Convert to fraction form
    143,223.75/197,648.91 = 79,567.47/x
  3. Step 3: Cross multiply
    143,223.75x = 197,648.91 × 79,567.47
  4. Step 4: Simplify right side
    143,223.75x = 15,726,423,716.96
  5. Step 5: Solve for x
    x = 15,726,423,716.96/143,223.75
  6. Step 6: Final answer
    x = 109,803.18

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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.