Home / 153,209.22-230,029.07-78,383.04

Finding the Fourth Proportional to 153,209.22, 230,029.07 and 78,383.04

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Solution

The fourth proportional to 153,209.22, 230,029.07 and 78,383.04 is: 117,684.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,209.22 : 230,029.07 = 78,383.04 : x
  2. Step 2: Convert to fraction form
    153,209.22/230,029.07 = 78,383.04/x
  3. Step 3: Cross multiply
    153,209.22x = 230,029.07 × 78,383.04
  4. Step 4: Simplify right side
    153,209.22x = 18,030,377,403.06
  5. Step 5: Solve for x
    x = 18,030,377,403.06/153,209.22
  6. Step 6: Final answer
    x = 117,684.68

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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.