Home / 191,205.39-263,863.65-106,320.63

Finding the Fourth Proportional to 191,205.39, 263,863.65 and 106,320.63

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Solution

The fourth proportional to 191,205.39, 263,863.65 and 106,320.63 is: 146,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,205.39 : 263,863.65 = 106,320.63 : x
  2. Step 2: Convert to fraction form
    191,205.39/263,863.65 = 106,320.63/x
  3. Step 3: Cross multiply
    191,205.39x = 263,863.65 × 106,320.63
  4. Step 4: Simplify right side
    191,205.39x = 28,054,148,182.78
  5. Step 5: Solve for x
    x = 28,054,148,182.78/191,205.39
  6. Step 6: Final answer
    x = 146,722.58

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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.