Home / 192,587.45-288,693.43-80,299.76

Finding the Fourth Proportional to 192,587.45, 288,693.43 and 80,299.76

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Solution

The fourth proportional to 192,587.45, 288,693.43 and 80,299.76 is: 120,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,587.45 : 288,693.43 = 80,299.76 : x
  2. Step 2: Convert to fraction form
    192,587.45/288,693.43 = 80,299.76/x
  3. Step 3: Cross multiply
    192,587.45x = 288,693.43 × 80,299.76
  4. Step 4: Simplify right side
    192,587.45x = 23,182,011,498.36
  5. Step 5: Solve for x
    x = 23,182,011,498.36/192,587.45
  6. Step 6: Final answer
    x = 120,371.35

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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.