Home / 236,619.77-326,532.80-129,189.47

Finding the Fourth Proportional to 236,619.77, 326,532.80 and 129,189.47

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Solution

The fourth proportional to 236,619.77, 326,532.80 and 129,189.47 is: 178,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,619.77 : 326,532.80 = 129,189.47 : x
  2. Step 2: Convert to fraction form
    236,619.77/326,532.80 = 129,189.47/x
  3. Step 3: Cross multiply
    236,619.77x = 326,532.80 × 129,189.47
  4. Step 4: Simplify right side
    236,619.77x = 42,184,598,059.93
  5. Step 5: Solve for x
    x = 42,184,598,059.93/236,619.77
  6. Step 6: Final answer
    x = 178,280.11

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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.