Home / 115,725.04-173,586.30-87,816.49

Finding the Fourth Proportional to 115,725.04, 173,586.30 and 87,816.49

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Solution

The fourth proportional to 115,725.04, 173,586.30 and 87,816.49 is: 131,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,725.04 : 173,586.30 = 87,816.49 : x
  2. Step 2: Convert to fraction form
    115,725.04/173,586.30 = 87,816.49/x
  3. Step 3: Cross multiply
    115,725.04x = 173,586.30 × 87,816.49
  4. Step 4: Simplify right side
    115,725.04x = 15,243,738,710.16
  5. Step 5: Solve for x
    x = 15,243,738,710.16/115,725.04
  6. Step 6: Final answer
    x = 131,723.78

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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.