Home / 236,820.88-326,808.95-129,388.60

Finding the Fourth Proportional to 236,820.88, 326,808.95 and 129,388.60

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Solution

The fourth proportional to 236,820.88, 326,808.95 and 129,388.60 is: 178,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,820.88 : 326,808.95 = 129,388.60 : x
  2. Step 2: Convert to fraction form
    236,820.88/326,808.95 = 129,388.60/x
  3. Step 3: Cross multiply
    236,820.88x = 326,808.95 × 129,388.60
  4. Step 4: Simplify right side
    236,820.88x = 42,285,352,507.97
  5. Step 5: Solve for x
    x = 42,285,352,507.97/236,820.88
  6. Step 6: Final answer
    x = 178,554.16

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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.