Home / 213,819.18-295,050.39-127,761

Finding the Fourth Proportional to 213,819.18, 295,050.39 and 127,761

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Solution

The fourth proportional to 213,819.18, 295,050.39 and 127,761 is: 176,298.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,819.18 : 295,050.39 = 127,761 : x
  2. Step 2: Convert to fraction form
    213,819.18/295,050.39 = 127,761/x
  3. Step 3: Cross multiply
    213,819.18x = 295,050.39 × 127,761
  4. Step 4: Simplify right side
    213,819.18x = 37,695,932,876.79
  5. Step 5: Solve for x
    x = 37,695,932,876.79/213,819.18
  6. Step 6: Final answer
    x = 176,298.18

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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.