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Finding the Fourth Proportional to 114,238.69, 157,569.26 and 79,725.80

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Solution

The fourth proportional to 114,238.69, 157,569.26 and 79,725.80 is: 109,965.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,238.69 : 157,569.26 = 79,725.80 : x
  2. Step 2: Convert to fraction form
    114,238.69/157,569.26 = 79,725.80/x
  3. Step 3: Cross multiply
    114,238.69x = 157,569.26 × 79,725.80
  4. Step 4: Simplify right side
    114,238.69x = 12,562,335,304.20
  5. Step 5: Solve for x
    x = 12,562,335,304.20/114,238.69
  6. Step 6: Final answer
    x = 109,965.68

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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.