Home / 254,424.39-381,680.58-85,945.95

Finding the Fourth Proportional to 254,424.39, 381,680.58 and 85,945.95

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Solution

The fourth proportional to 254,424.39, 381,680.58 and 85,945.95 is: 128,933.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,424.39 : 381,680.58 = 85,945.95 : x
  2. Step 2: Convert to fraction form
    254,424.39/381,680.58 = 85,945.95/x
  3. Step 3: Cross multiply
    254,424.39x = 381,680.58 × 85,945.95
  4. Step 4: Simplify right side
    254,424.39x = 32,803,900,044.65
  5. Step 5: Solve for x
    x = 32,803,900,044.65/254,424.39
  6. Step 6: Final answer
    x = 128,933.79

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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.