Home / 100,856.41-151,240.88-34,278.66

Finding the Fourth Proportional to 100,856.41, 151,240.88 and 34,278.66

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Solution

The fourth proportional to 100,856.41, 151,240.88 and 34,278.66 is: 51,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,856.41 : 151,240.88 = 34,278.66 : x
  2. Step 2: Convert to fraction form
    100,856.41/151,240.88 = 34,278.66/x
  3. Step 3: Cross multiply
    100,856.41x = 151,240.88 × 34,278.66
  4. Step 4: Simplify right side
    100,856.41x = 5,184,335,099.38
  5. Step 5: Solve for x
    x = 5,184,335,099.38/100,856.41
  6. Step 6: Final answer
    x = 51,403.13

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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.