Home / 115,510.08-159,405.24-67,764.24

Finding the Fourth Proportional to 115,510.08, 159,405.24 and 67,764.24

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Solution

The fourth proportional to 115,510.08, 159,405.24 and 67,764.24 is: 93,515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,510.08 : 159,405.24 = 67,764.24 : x
  2. Step 2: Convert to fraction form
    115,510.08/159,405.24 = 67,764.24/x
  3. Step 3: Cross multiply
    115,510.08x = 159,405.24 × 67,764.24
  4. Step 4: Simplify right side
    115,510.08x = 10,801,974,940.62
  5. Step 5: Solve for x
    x = 10,801,974,940.62/115,510.08
  6. Step 6: Final answer
    x = 93,515.43

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1.5x scale

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.