Home / 115,914.10-173,871.15-89,637.70

Finding the Fourth Proportional to 115,914.10, 173,871.15 and 89,637.70

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Solution

The fourth proportional to 115,914.10, 173,871.15 and 89,637.70 is: 134,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,914.10 : 173,871.15 = 89,637.70 : x
  2. Step 2: Convert to fraction form
    115,914.10/173,871.15 = 89,637.70/x
  3. Step 3: Cross multiply
    115,914.10x = 173,871.15 × 89,637.70
  4. Step 4: Simplify right side
    115,914.10x = 15,585,409,982.36
  5. Step 5: Solve for x
    x = 15,585,409,982.36/115,914.10
  6. Step 6: Final answer
    x = 134,456.55

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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.