Home / 205,344.61-307,267.54-121,145.11

Finding the Fourth Proportional to 205,344.61, 307,267.54 and 121,145.11

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Solution

The fourth proportional to 205,344.61, 307,267.54 and 121,145.11 is: 181,275.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,344.61 : 307,267.54 = 121,145.11 : x
  2. Step 2: Convert to fraction form
    205,344.61/307,267.54 = 121,145.11/x
  3. Step 3: Cross multiply
    205,344.61x = 307,267.54 × 121,145.11
  4. Step 4: Simplify right side
    205,344.61x = 37,223,958,861.70
  5. Step 5: Solve for x
    x = 37,223,958,861.70/205,344.61
  6. Step 6: Final answer
    x = 181,275.56

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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.