Home / 197,820.11-272,720.62-125,186.87

Finding the Fourth Proportional to 197,820.11, 272,720.62 and 125,186.87

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Solution

The fourth proportional to 197,820.11, 272,720.62 and 125,186.87 is: 172,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,820.11 : 272,720.62 = 125,186.87 : x
  2. Step 2: Convert to fraction form
    197,820.11/272,720.62 = 125,186.87/x
  3. Step 3: Cross multiply
    197,820.11x = 272,720.62 × 125,186.87
  4. Step 4: Simplify right side
    197,820.11x = 34,141,041,640.54
  5. Step 5: Solve for x
    x = 34,141,041,640.54/197,820.11
  6. Step 6: Final answer
    x = 172,586.30

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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.