Home / 236,210.61-325,972.56-128,781.42

Finding the Fourth Proportional to 236,210.61, 325,972.56 and 128,781.42

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Solution

The fourth proportional to 236,210.61, 325,972.56 and 128,781.42 is: 177,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,210.61 : 325,972.56 = 128,781.42 : x
  2. Step 2: Convert to fraction form
    236,210.61/325,972.56 = 128,781.42/x
  3. Step 3: Cross multiply
    236,210.61x = 325,972.56 × 128,781.42
  4. Step 4: Simplify right side
    236,210.61x = 41,979,209,157.84
  5. Step 5: Solve for x
    x = 41,979,209,157.84/236,210.61
  6. Step 6: Final answer
    x = 177,719.41

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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.