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Finding the Fourth Proportional to 159,435, 220,020.30 and 92,405.88

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Solution

The fourth proportional to 159,435, 220,020.30 and 92,405.88 is: 127,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,435 : 220,020.30 = 92,405.88 : x
  2. Step 2: Convert to fraction form
    159,435/220,020.30 = 92,405.88/x
  3. Step 3: Cross multiply
    159,435x = 220,020.30 × 92,405.88
  4. Step 4: Simplify right side
    159,435x = 20,331,169,439.36
  5. Step 5: Solve for x
    x = 20,331,169,439.36/159,435
  6. Step 6: Final answer
    x = 127,520.11

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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.