Home / 197,341.52-272,356.24-129,415.64

Finding the Fourth Proportional to 197,341.52, 272,356.24 and 129,415.64

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Solution

The fourth proportional to 197,341.52, 272,356.24 and 129,415.64 is: 178,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,341.52 : 272,356.24 = 129,415.64 : x
  2. Step 2: Convert to fraction form
    197,341.52/272,356.24 = 129,415.64/x
  3. Step 3: Cross multiply
    197,341.52x = 272,356.24 × 129,415.64
  4. Step 4: Simplify right side
    197,341.52x = 35,247,157,107.59
  5. Step 5: Solve for x
    x = 35,247,157,107.59/197,341.52
  6. Step 6: Final answer
    x = 178,609.94

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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.