Home / 205,162.18-307,740.07-105,264.72

Finding the Fourth Proportional to 205,162.18, 307,740.07 and 105,264.72

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Solution

The fourth proportional to 205,162.18, 307,740.07 and 105,264.72 is: 157,895.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,162.18 : 307,740.07 = 105,264.72 : x
  2. Step 2: Convert to fraction form
    205,162.18/307,740.07 = 105,264.72/x
  3. Step 3: Cross multiply
    205,162.18x = 307,740.07 × 105,264.72
  4. Step 4: Simplify right side
    205,162.18x = 32,394,172,301.33
  5. Step 5: Solve for x
    x = 32,394,172,301.33/205,162.18
  6. Step 6: Final answer
    x = 157,895.44

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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.