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Finding the Fourth Proportional to 159,552.80, 239,329.20 and 130,028.30

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Solution

The fourth proportional to 159,552.80, 239,329.20 and 130,028.30 is: 195,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,552.80 : 239,329.20 = 130,028.30 : x
  2. Step 2: Convert to fraction form
    159,552.80/239,329.20 = 130,028.30/x
  3. Step 3: Cross multiply
    159,552.80x = 239,329.20 × 130,028.30
  4. Step 4: Simplify right side
    159,552.80x = 31,119,569,016.36
  5. Step 5: Solve for x
    x = 31,119,569,016.36/159,552.80
  6. Step 6: Final answer
    x = 195,042.45

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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.