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Finding the Fourth Proportional to 159,886.30, 220,637.31 and 88,264.79

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Solution

The fourth proportional to 159,886.30, 220,637.31 and 88,264.79 is: 121,802.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,886.30 : 220,637.31 = 88,264.79 : x
  2. Step 2: Convert to fraction form
    159,886.30/220,637.31 = 88,264.79/x
  3. Step 3: Cross multiply
    159,886.30x = 220,637.31 × 88,264.79
  4. Step 4: Simplify right side
    159,886.30x = 19,474,504,730.13
  5. Step 5: Solve for x
    x = 19,474,504,730.13/159,886.30
  6. Step 6: Final answer
    x = 121,802.21

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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.