Home / 115,021.72-158,706.18-67,265.80

Finding the Fourth Proportional to 115,021.72, 158,706.18 and 67,265.80

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Solution

The fourth proportional to 115,021.72, 158,706.18 and 67,265.80 is: 92,812.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,021.72 : 158,706.18 = 67,265.80 : x
  2. Step 2: Convert to fraction form
    115,021.72/158,706.18 = 67,265.80/x
  3. Step 3: Cross multiply
    115,021.72x = 158,706.18 × 67,265.80
  4. Step 4: Simplify right side
    115,021.72x = 10,675,498,162.64
  5. Step 5: Solve for x
    x = 10,675,498,162.64/115,021.72
  6. Step 6: Final answer
    x = 92,812.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.