Home / 115,153.54-158,906.68-64,171.85

Finding the Fourth Proportional to 115,153.54, 158,906.68 and 64,171.85

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Solution

The fourth proportional to 115,153.54, 158,906.68 and 64,171.85 is: 88,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,153.54 : 158,906.68 = 64,171.85 : x
  2. Step 2: Convert to fraction form
    115,153.54/158,906.68 = 64,171.85/x
  3. Step 3: Cross multiply
    115,153.54x = 158,906.68 × 64,171.85
  4. Step 4: Simplify right side
    115,153.54x = 10,197,334,678.00
  5. Step 5: Solve for x
    x = 10,197,334,678.00/115,153.54
  6. Step 6: Final answer
    x = 88,554.25

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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.