Home / 154,469.20-231,703.80-65,725.60

Finding the Fourth Proportional to 154,469.20, 231,703.80 and 65,725.60

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Solution

The fourth proportional to 154,469.20, 231,703.80 and 65,725.60 is: 98,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,469.20 : 231,703.80 = 65,725.60 : x
  2. Step 2: Convert to fraction form
    154,469.20/231,703.80 = 65,725.60/x
  3. Step 3: Cross multiply
    154,469.20x = 231,703.80 × 65,725.60
  4. Step 4: Simplify right side
    154,469.20x = 15,228,871,277.28
  5. Step 5: Solve for x
    x = 15,228,871,277.28/154,469.20
  6. Step 6: Final answer
    x = 98,588.40

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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.