Home / 205,373.16-307,310.38-121,173.66

Finding the Fourth Proportional to 205,373.16, 307,310.38 and 121,173.66

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Solution

The fourth proportional to 205,373.16, 307,310.38 and 121,173.66 is: 181,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,373.16 : 307,310.38 = 121,173.66 : x
  2. Step 2: Convert to fraction form
    205,373.16/307,310.38 = 121,173.66/x
  3. Step 3: Cross multiply
    205,373.16x = 307,310.38 × 121,173.66
  4. Step 4: Simplify right side
    205,373.16x = 37,237,923,500.59
  5. Step 5: Solve for x
    x = 37,237,923,500.59/205,373.16
  6. Step 6: Final answer
    x = 181,318.35

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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.