Home / 127,670.20-191,490.78-48,782.68

Finding the Fourth Proportional to 127,670.20, 191,490.78 and 48,782.68

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Solution

The fourth proportional to 127,670.20, 191,490.78 and 48,782.68 is: 73,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,670.20 : 191,490.78 = 48,782.68 : x
  2. Step 2: Convert to fraction form
    127,670.20/191,490.78 = 48,782.68/x
  3. Step 3: Cross multiply
    127,670.20x = 191,490.78 × 48,782.68
  4. Step 4: Simplify right side
    127,670.20x = 9,341,433,443.69
  5. Step 5: Solve for x
    x = 9,341,433,443.69/127,670.20
  6. Step 6: Final answer
    x = 73,168.47

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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.