Home / 226,145.12-312,043.90-130,664.48

Finding the Fourth Proportional to 226,145.12, 312,043.90 and 130,664.48

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Solution

The fourth proportional to 226,145.12, 312,043.90 and 130,664.48 is: 180,295.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,145.12 : 312,043.90 = 130,664.48 : x
  2. Step 2: Convert to fraction form
    226,145.12/312,043.90 = 130,664.48/x
  3. Step 3: Cross multiply
    226,145.12x = 312,043.90 × 130,664.48
  4. Step 4: Simplify right side
    226,145.12x = 40,773,053,930.67
  5. Step 5: Solve for x
    x = 40,773,053,930.67/226,145.12
  6. Step 6: Final answer
    x = 180,295.97

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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.