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Finding the Fourth Proportional to 159,292.49, 219,816.99 and 91,262.21

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Solution

The fourth proportional to 159,292.49, 219,816.99 and 91,262.21 is: 125,938.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,292.49 : 219,816.99 = 91,262.21 : x
  2. Step 2: Convert to fraction form
    159,292.49/219,816.99 = 91,262.21/x
  3. Step 3: Cross multiply
    159,292.49x = 219,816.99 × 91,262.21
  4. Step 4: Simplify right side
    159,292.49x = 20,060,983,203.86
  5. Step 5: Solve for x
    x = 20,060,983,203.86/159,292.49
  6. Step 6: Final answer
    x = 125,938.04

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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.