Home / 115,236.52-159,158.81-76,929.37

Finding the Fourth Proportional to 115,236.52, 159,158.81 and 76,929.37

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Solution

The fourth proportional to 115,236.52, 159,158.81 and 76,929.37 is: 106,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,236.52 : 159,158.81 = 76,929.37 : x
  2. Step 2: Convert to fraction form
    115,236.52/159,158.81 = 76,929.37/x
  3. Step 3: Cross multiply
    115,236.52x = 159,158.81 × 76,929.37
  4. Step 4: Simplify right side
    115,236.52x = 12,243,986,983.25
  5. Step 5: Solve for x
    x = 12,243,986,983.25/115,236.52
  6. Step 6: Final answer
    x = 106,250.93

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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.