Home / 115,360.32-159,163.68-72,375.36

Finding the Fourth Proportional to 115,360.32, 159,163.68 and 72,375.36

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Solution

The fourth proportional to 115,360.32, 159,163.68 and 72,375.36 is: 99,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,360.32 : 159,163.68 = 72,375.36 : x
  2. Step 2: Convert to fraction form
    115,360.32/159,163.68 = 72,375.36/x
  3. Step 3: Cross multiply
    115,360.32x = 159,163.68 × 72,375.36
  4. Step 4: Simplify right side
    115,360.32x = 11,519,528,638.92
  5. Step 5: Solve for x
    x = 11,519,528,638.92/115,360.32
  6. Step 6: Final answer
    x = 99,856.94

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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.