Home / 236,555.54-326,454.36-129,131.30

Finding the Fourth Proportional to 236,555.54, 326,454.36 and 129,131.30

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Solution

The fourth proportional to 236,555.54, 326,454.36 and 129,131.30 is: 178,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,555.54 : 326,454.36 = 129,131.30 : x
  2. Step 2: Convert to fraction form
    236,555.54/326,454.36 = 129,131.30/x
  3. Step 3: Cross multiply
    236,555.54x = 326,454.36 × 129,131.30
  4. Step 4: Simplify right side
    236,555.54x = 42,155,475,897.47
  5. Step 5: Solve for x
    x = 42,155,475,897.47/236,555.54
  6. Step 6: Final answer
    x = 178,205.41

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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.