Home / 197,331.53-272,342.45-129,405.65

Finding the Fourth Proportional to 197,331.53, 272,342.45 and 129,405.65

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Solution

The fourth proportional to 197,331.53, 272,342.45 and 129,405.65 is: 178,596.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,331.53 : 272,342.45 = 129,405.65 : x
  2. Step 2: Convert to fraction form
    197,331.53/272,342.45 = 129,405.65/x
  3. Step 3: Cross multiply
    197,331.53x = 272,342.45 × 129,405.65
  4. Step 4: Simplify right side
    197,331.53x = 35,242,651,764.84
  5. Step 5: Solve for x
    x = 35,242,651,764.84/197,331.53
  6. Step 6: Final answer
    x = 178,596.15

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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.