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Finding the Fourth Proportional to 159,546.80, 239,320.20 and 130,022.30

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Solution

The fourth proportional to 159,546.80, 239,320.20 and 130,022.30 is: 195,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,546.80 : 239,320.20 = 130,022.30 : x
  2. Step 2: Convert to fraction form
    159,546.80/239,320.20 = 130,022.30/x
  3. Step 3: Cross multiply
    159,546.80x = 239,320.20 × 130,022.30
  4. Step 4: Simplify right side
    159,546.80x = 31,116,962,840.46
  5. Step 5: Solve for x
    x = 31,116,962,840.46/159,546.80
  6. Step 6: Final answer
    x = 195,033.45

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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.