Home / 158,929.40-238,272.60-80,100.20

Finding the Fourth Proportional to 158,929.40, 238,272.60 and 80,100.20

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Solution

The fourth proportional to 158,929.40, 238,272.60 and 80,100.20 is: 120,089.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,929.40 : 238,272.60 = 80,100.20 : x
  2. Step 2: Convert to fraction form
    158,929.40/238,272.60 = 80,100.20/x
  3. Step 3: Cross multiply
    158,929.40x = 238,272.60 × 80,100.20
  4. Step 4: Simplify right side
    158,929.40x = 19,085,682,914.52
  5. Step 5: Solve for x
    x = 19,085,682,914.52/158,929.40
  6. Step 6: Final answer
    x = 120,089.06

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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.