Home / 205,435.18-307,728.27-120,934.96

Finding the Fourth Proportional to 205,435.18, 307,728.27 and 120,934.96

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Solution

The fourth proportional to 205,435.18, 307,728.27 and 120,934.96 is: 181,152.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,435.18 : 307,728.27 = 120,934.96 : x
  2. Step 2: Convert to fraction form
    205,435.18/307,728.27 = 120,934.96/x
  3. Step 3: Cross multiply
    205,435.18x = 307,728.27 × 120,934.96
  4. Step 4: Simplify right side
    205,435.18x = 37,215,106,023.32
  5. Step 5: Solve for x
    x = 37,215,106,023.32/205,435.18
  6. Step 6: Final answer
    x = 181,152.55

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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.