Home / 127,388.46-191,083.15-38,642.74

Finding the Fourth Proportional to 127,388.46, 191,083.15 and 38,642.74

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Solution

The fourth proportional to 127,388.46, 191,083.15 and 38,642.74 is: 57,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,388.46 : 191,083.15 = 38,642.74 : x
  2. Step 2: Convert to fraction form
    127,388.46/191,083.15 = 38,642.74/x
  3. Step 3: Cross multiply
    127,388.46x = 191,083.15 × 38,642.74
  4. Step 4: Simplify right side
    127,388.46x = 7,383,976,483.83
  5. Step 5: Solve for x
    x = 7,383,976,483.83/127,388.46
  6. Step 6: Final answer
    x = 57,964.25

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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.