Home / 236,784.39-326,767.28-129,361.38

Finding the Fourth Proportional to 236,784.39, 326,767.28 and 129,361.38

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Solution

The fourth proportional to 236,784.39, 326,767.28 and 129,361.38 is: 178,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,784.39 : 326,767.28 = 129,361.38 : x
  2. Step 2: Convert to fraction form
    236,784.39/326,767.28 = 129,361.38/x
  3. Step 3: Cross multiply
    236,784.39x = 326,767.28 × 129,361.38
  4. Step 4: Simplify right side
    236,784.39x = 42,271,065,632.84
  5. Step 5: Solve for x
    x = 42,271,065,632.84/236,784.39
  6. Step 6: Final answer
    x = 178,521.34

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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.