Home / 134,859.57-202,226.79-78,715.92

Finding the Fourth Proportional to 134,859.57, 202,226.79 and 78,715.92

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Solution

The fourth proportional to 134,859.57, 202,226.79 and 78,715.92 is: 118,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,859.57 : 202,226.79 = 78,715.92 : x
  2. Step 2: Convert to fraction form
    134,859.57/202,226.79 = 78,715.92/x
  3. Step 3: Cross multiply
    134,859.57x = 202,226.79 × 78,715.92
  4. Step 4: Simplify right side
    134,859.57x = 15,918,467,823.50
  5. Step 5: Solve for x
    x = 15,918,467,823.50/134,859.57
  6. Step 6: Final answer
    x = 118,037.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.