Home / 115,383.40-173,204.70-89,204.20

Finding the Fourth Proportional to 115,383.40, 173,204.70 and 89,204.20

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Solution

The fourth proportional to 115,383.40, 173,204.70 and 89,204.20 is: 133,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,383.40 : 173,204.70 = 89,204.20 : x
  2. Step 2: Convert to fraction form
    115,383.40/173,204.70 = 89,204.20/x
  3. Step 3: Cross multiply
    115,383.40x = 173,204.70 × 89,204.20
  4. Step 4: Simplify right side
    115,383.40x = 15,450,586,699.74
  5. Step 5: Solve for x
    x = 15,450,586,699.74/115,383.40
  6. Step 6: Final answer
    x = 133,906.50

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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.