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Finding the Fourth Proportional to 160,654.31, 221,699.15 and 89,032.79

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Solution

The fourth proportional to 160,654.31, 221,699.15 and 89,032.79 is: 122,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,654.31 : 221,699.15 = 89,032.79 : x
  2. Step 2: Convert to fraction form
    160,654.31/221,699.15 = 89,032.79/x
  3. Step 3: Cross multiply
    160,654.31x = 221,699.15 × 89,032.79
  4. Step 4: Simplify right side
    160,654.31x = 19,738,492,311.47
  5. Step 5: Solve for x
    x = 19,738,492,311.47/160,654.31
  6. Step 6: Final answer
    x = 122,863.14

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1.5x scale

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.