Home / 136,226.14-187,755.87-128,352.94

Finding the Fourth Proportional to 136,226.14, 187,755.87 and 128,352.94

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Solution

The fourth proportional to 136,226.14, 187,755.87 and 128,352.94 is: 176,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,226.14 : 187,755.87 = 128,352.94 : x
  2. Step 2: Convert to fraction form
    136,226.14/187,755.87 = 128,352.94/x
  3. Step 3: Cross multiply
    136,226.14x = 187,755.87 × 128,352.94
  4. Step 4: Simplify right side
    136,226.14x = 24,099,017,928.69
  5. Step 5: Solve for x
    x = 24,099,017,928.69/136,226.14
  6. Step 6: Final answer
    x = 176,904.51

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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.