Home / 236,213.48-325,976.51-128,784.29

Finding the Fourth Proportional to 236,213.48, 325,976.51 and 128,784.29

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Solution

The fourth proportional to 236,213.48, 325,976.51 and 128,784.29 is: 177,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,213.48 : 325,976.51 = 128,784.29 : x
  2. Step 2: Convert to fraction form
    236,213.48/325,976.51 = 128,784.29/x
  3. Step 3: Cross multiply
    236,213.48x = 325,976.51 × 128,784.29
  4. Step 4: Simplify right side
    236,213.48x = 41,980,652,753.11
  5. Step 5: Solve for x
    x = 41,980,652,753.11/236,213.48
  6. Step 6: Final answer
    x = 177,723.36

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1.5x scale

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.