Home / 152,983.80-211,110.78-85,005.54

Finding the Fourth Proportional to 152,983.80, 211,110.78 and 85,005.54

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Solution

The fourth proportional to 152,983.80, 211,110.78 and 85,005.54 is: 117,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,983.80 : 211,110.78 = 85,005.54 : x
  2. Step 2: Convert to fraction form
    152,983.80/211,110.78 = 85,005.54/x
  3. Step 3: Cross multiply
    152,983.80x = 211,110.78 × 85,005.54
  4. Step 4: Simplify right side
    152,983.80x = 17,945,585,853.72
  5. Step 5: Solve for x
    x = 17,945,585,853.72/152,983.80
  6. Step 6: Final answer
    x = 117,303.83

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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.