Home / 205,014.95-307,521.11-70,013.90

Finding the Fourth Proportional to 205,014.95, 307,521.11 and 70,013.90

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Solution

The fourth proportional to 205,014.95, 307,521.11 and 70,013.90 is: 105,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,014.95 : 307,521.11 = 70,013.90 : x
  2. Step 2: Convert to fraction form
    205,014.95/307,521.11 = 70,013.90/x
  3. Step 3: Cross multiply
    205,014.95x = 307,521.11 × 70,013.90
  4. Step 4: Simplify right side
    205,014.95x = 21,530,753,187.27
  5. Step 5: Solve for x
    x = 21,530,753,187.27/205,014.95
  6. Step 6: Final answer
    x = 105,020.41

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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.