Home / 236,335.56-326,142.86-128,905.26

Finding the Fourth Proportional to 236,335.56, 326,142.86 and 128,905.26

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Solution

The fourth proportional to 236,335.56, 326,142.86 and 128,905.26 is: 177,889.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,335.56 : 326,142.86 = 128,905.26 : x
  2. Step 2: Convert to fraction form
    236,335.56/326,142.86 = 128,905.26/x
  3. Step 3: Cross multiply
    236,335.56x = 326,142.86 × 128,905.26
  4. Step 4: Simplify right side
    236,335.56x = 42,041,530,165.44
  5. Step 5: Solve for x
    x = 42,041,530,165.44/236,335.56
  6. Step 6: Final answer
    x = 177,889.14

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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.