Home / 136,533.43-188,416.98-76,107.91

Finding the Fourth Proportional to 136,533.43, 188,416.98 and 76,107.91

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Solution

The fourth proportional to 136,533.43, 188,416.98 and 76,107.91 is: 105,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,533.43 : 188,416.98 = 76,107.91 : x
  2. Step 2: Convert to fraction form
    136,533.43/188,416.98 = 76,107.91/x
  3. Step 3: Cross multiply
    136,533.43x = 188,416.98 × 76,107.91
  4. Step 4: Simplify right side
    136,533.43x = 14,340,022,556.31
  5. Step 5: Solve for x
    x = 14,340,022,556.31/136,533.43
  6. Step 6: Final answer
    x = 105,029.39

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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.