Home / 118,408.39-177,640.49-38,440.19

Finding the Fourth Proportional to 118,408.39, 177,640.49 and 38,440.19

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Solution

The fourth proportional to 118,408.39, 177,640.49 and 38,440.19 is: 57,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,408.39 : 177,640.49 = 38,440.19 : x
  2. Step 2: Convert to fraction form
    118,408.39/177,640.49 = 38,440.19/x
  3. Step 3: Cross multiply
    118,408.39x = 177,640.49 × 38,440.19
  4. Step 4: Simplify right side
    118,408.39x = 6,828,534,187.29
  5. Step 5: Solve for x
    x = 6,828,534,187.29/118,408.39
  6. Step 6: Final answer
    x = 57,669.34

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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.