Home / 236,825.79-326,819.02-129,396.64

Finding the Fourth Proportional to 236,825.79, 326,819.02 and 129,396.64

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Solution

The fourth proportional to 236,825.79, 326,819.02 and 129,396.64 is: 178,567.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,825.79 : 326,819.02 = 129,396.64 : x
  2. Step 2: Convert to fraction form
    236,825.79/326,819.02 = 129,396.64/x
  3. Step 3: Cross multiply
    236,825.79x = 326,819.02 × 129,396.64
  4. Step 4: Simplify right side
    236,825.79x = 42,289,280,795.01
  5. Step 5: Solve for x
    x = 42,289,280,795.01/236,825.79
  6. Step 6: Final answer
    x = 178,567.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.