Home / 127,631.21-191,459.91-48,811.73

Finding the Fourth Proportional to 127,631.21, 191,459.91 and 48,811.73

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Solution

The fourth proportional to 127,631.21, 191,459.91 and 48,811.73 is: 73,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,631.21 : 191,459.91 = 48,811.73 : x
  2. Step 2: Convert to fraction form
    127,631.21/191,459.91 = 48,811.73/x
  3. Step 3: Cross multiply
    127,631.21x = 191,459.91 × 48,811.73
  4. Step 4: Simplify right side
    127,631.21x = 9,345,489,432.74
  5. Step 5: Solve for x
    x = 9,345,489,432.74/127,631.21
  6. Step 6: Final answer
    x = 73,222.60

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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.