Home / 159,318.90-238,989.15-54,145.80

Finding the Fourth Proportional to 159,318.90, 238,989.15 and 54,145.80

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Solution

The fourth proportional to 159,318.90, 238,989.15 and 54,145.80 is: 81,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,318.90 : 238,989.15 = 54,145.80 : x
  2. Step 2: Convert to fraction form
    159,318.90/238,989.15 = 54,145.80/x
  3. Step 3: Cross multiply
    159,318.90x = 238,989.15 × 54,145.80
  4. Step 4: Simplify right side
    159,318.90x = 12,940,258,718.07
  5. Step 5: Solve for x
    x = 12,940,258,718.07/159,318.90
  6. Step 6: Final answer
    x = 81,222.37

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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.