Home / 127,631.58-191,511.95-52,805.42

Finding the Fourth Proportional to 127,631.58, 191,511.95 and 52,805.42

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Solution

The fourth proportional to 127,631.58, 191,511.95 and 52,805.42 is: 79,234.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,631.58 : 191,511.95 = 52,805.42 : x
  2. Step 2: Convert to fraction form
    127,631.58/191,511.95 = 52,805.42/x
  3. Step 3: Cross multiply
    127,631.58x = 191,511.95 × 52,805.42
  4. Step 4: Simplify right side
    127,631.58x = 10,112,867,733.18
  5. Step 5: Solve for x
    x = 10,112,867,733.18/127,631.58
  6. Step 6: Final answer
    x = 79,234.84

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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.