Home / 115,472.52-159,263.82-79,722.36

Finding the Fourth Proportional to 115,472.52, 159,263.82 and 79,722.36

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Solution

The fourth proportional to 115,472.52, 159,263.82 and 79,722.36 is: 109,955.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,472.52 : 159,263.82 = 79,722.36 : x
  2. Step 2: Convert to fraction form
    115,472.52/159,263.82 = 79,722.36/x
  3. Step 3: Cross multiply
    115,472.52x = 159,263.82 × 79,722.36
  4. Step 4: Simplify right side
    115,472.52x = 12,696,887,593.02
  5. Step 5: Solve for x
    x = 12,696,887,593.02/115,472.52
  6. Step 6: Final answer
    x = 109,955.92

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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.