Home / 197,677.94-272,815.11-112,807.76

Finding the Fourth Proportional to 197,677.94, 272,815.11 and 112,807.76

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Solution

The fourth proportional to 197,677.94, 272,815.11 and 112,807.76 is: 155,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,677.94 : 272,815.11 = 112,807.76 : x
  2. Step 2: Convert to fraction form
    197,677.94/272,815.11 = 112,807.76/x
  3. Step 3: Cross multiply
    197,677.94x = 272,815.11 × 112,807.76
  4. Step 4: Simplify right side
    197,677.94x = 30,775,660,089.18
  5. Step 5: Solve for x
    x = 30,775,660,089.18/197,677.94
  6. Step 6: Final answer
    x = 155,685.86

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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.