Home / 115,906.07-173,401.65-87,905.18

Finding the Fourth Proportional to 115,906.07, 173,401.65 and 87,905.18

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Solution

The fourth proportional to 115,906.07, 173,401.65 and 87,905.18 is: 131,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,906.07 : 173,401.65 = 87,905.18 : x
  2. Step 2: Convert to fraction form
    115,906.07/173,401.65 = 87,905.18/x
  3. Step 3: Cross multiply
    115,906.07x = 173,401.65 × 87,905.18
  4. Step 4: Simplify right side
    115,906.07x = 15,242,902,388.54
  5. Step 5: Solve for x
    x = 15,242,902,388.54/115,906.07
  6. Step 6: Final answer
    x = 131,510.83

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1.5x scale

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.