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Finding the Fourth Proportional to 159,426.60, 239,139.90 and 109,660.20

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Solution

The fourth proportional to 159,426.60, 239,139.90 and 109,660.20 is: 164,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,426.60 : 239,139.90 = 109,660.20 : x
  2. Step 2: Convert to fraction form
    159,426.60/239,139.90 = 109,660.20/x
  3. Step 3: Cross multiply
    159,426.60x = 239,139.90 × 109,660.20
  4. Step 4: Simplify right side
    159,426.60x = 26,224,129,261.98
  5. Step 5: Solve for x
    x = 26,224,129,261.98/159,426.60
  6. Step 6: Final answer
    x = 164,490.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.