Home / 127,647.86-191,479.00-38,904.26

Finding the Fourth Proportional to 127,647.86, 191,479.00 and 38,904.26

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Solution

The fourth proportional to 127,647.86, 191,479.00 and 38,904.26 is: 58,358.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,647.86 : 191,479.00 = 38,904.26 : x
  2. Step 2: Convert to fraction form
    127,647.86/191,479.00 = 38,904.26/x
  3. Step 3: Cross multiply
    127,647.86x = 191,479.00 × 38,904.26
  4. Step 4: Simplify right side
    127,647.86x = 7,449,349,181.98
  5. Step 5: Solve for x
    x = 7,449,349,181.98/127,647.86
  6. Step 6: Final answer
    x = 58,358.59

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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.