Home / 154,511.40-231,803.25-47,889.81

Finding the Fourth Proportional to 154,511.40, 231,803.25 and 47,889.81

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Solution

The fourth proportional to 154,511.40, 231,803.25 and 47,889.81 is: 71,845.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,511.40 : 231,803.25 = 47,889.81 : x
  2. Step 2: Convert to fraction form
    154,511.40/231,803.25 = 47,889.81/x
  3. Step 3: Cross multiply
    154,511.40x = 231,803.25 × 47,889.81
  4. Step 4: Simplify right side
    154,511.40x = 11,101,013,599.88
  5. Step 5: Solve for x
    x = 11,101,013,599.88/154,511.40
  6. Step 6: Final answer
    x = 71,845.92

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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.