Home / 236,404.73-326,227.15-128,968.36

Finding the Fourth Proportional to 236,404.73, 326,227.15 and 128,968.36

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Solution

The fourth proportional to 236,404.73, 326,227.15 and 128,968.36 is: 177,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,404.73 : 326,227.15 = 128,968.36 : x
  2. Step 2: Convert to fraction form
    236,404.73/326,227.15 = 128,968.36/x
  3. Step 3: Cross multiply
    236,404.73x = 326,227.15 × 128,968.36
  4. Step 4: Simplify right side
    236,404.73x = 42,072,980,522.97
  5. Step 5: Solve for x
    x = 42,072,980,522.97/236,404.73
  6. Step 6: Final answer
    x = 177,970.13

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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.