Home / 239,209.20-358,862.40-81,453.60

Finding the Fourth Proportional to 239,209.20, 358,862.40 and 81,453.60

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Solution

The fourth proportional to 239,209.20, 358,862.40 and 81,453.60 is: 122,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,209.20 : 358,862.40 = 81,453.60 : x
  2. Step 2: Convert to fraction form
    239,209.20/358,862.40 = 81,453.60/x
  3. Step 3: Cross multiply
    239,209.20x = 358,862.40 × 81,453.60
  4. Step 4: Simplify right side
    239,209.20x = 29,230,634,384.64
  5. Step 5: Solve for x
    x = 29,230,634,384.64/239,209.20
  6. Step 6: Final answer
    x = 122,196.95

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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.