Home / 236,639.49-326,560.86-129,209.46

Finding the Fourth Proportional to 236,639.49, 326,560.86 and 129,209.46

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Solution

The fourth proportional to 236,639.49, 326,560.86 and 129,209.46 is: 178,308.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,639.49 : 326,560.86 = 129,209.46 : x
  2. Step 2: Convert to fraction form
    236,639.49/326,560.86 = 129,209.46/x
  3. Step 3: Cross multiply
    236,639.49x = 326,560.86 × 129,209.46
  4. Step 4: Simplify right side
    236,639.49x = 42,194,752,377.74
  5. Step 5: Solve for x
    x = 42,194,752,377.74/236,639.49
  6. Step 6: Final answer
    x = 178,308.16

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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.