Home / 144,197.72-216,222.74-76,768.06

Finding the Fourth Proportional to 144,197.72, 216,222.74 and 76,768.06

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Solution

The fourth proportional to 144,197.72, 216,222.74 and 76,768.06 is: 115,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,197.72 : 216,222.74 = 76,768.06 : x
  2. Step 2: Convert to fraction form
    144,197.72/216,222.74 = 76,768.06/x
  3. Step 3: Cross multiply
    144,197.72x = 216,222.74 × 76,768.06
  4. Step 4: Simplify right side
    144,197.72x = 16,599,000,277.68
  5. Step 5: Solve for x
    x = 16,599,000,277.68/144,197.72
  6. Step 6: Final answer
    x = 115,112.78

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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.