Home / 138,828.90-191,398.58-104,227.16

Finding the Fourth Proportional to 138,828.90, 191,398.58 and 104,227.16

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Solution

The fourth proportional to 138,828.90, 191,398.58 and 104,227.16 is: 143,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,828.90 : 191,398.58 = 104,227.16 : x
  2. Step 2: Convert to fraction form
    138,828.90/191,398.58 = 104,227.16/x
  3. Step 3: Cross multiply
    138,828.90x = 191,398.58 × 104,227.16
  4. Step 4: Simplify right side
    138,828.90x = 19,948,929,334.16
  5. Step 5: Solve for x
    x = 19,948,929,334.16/138,828.90
  6. Step 6: Final answer
    x = 143,694.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.