Home / 225,107.15-310,636.26-123,112.76

Finding the Fourth Proportional to 225,107.15, 310,636.26 and 123,112.76

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Solution

The fourth proportional to 225,107.15, 310,636.26 and 123,112.76 is: 169,889.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,107.15 : 310,636.26 = 123,112.76 : x
  2. Step 2: Convert to fraction form
    225,107.15/310,636.26 = 123,112.76/x
  3. Step 3: Cross multiply
    225,107.15x = 310,636.26 × 123,112.76
  4. Step 4: Simplify right side
    225,107.15x = 38,243,285,771.50
  5. Step 5: Solve for x
    x = 38,243,285,771.50/225,107.15
  6. Step 6: Final answer
    x = 169,889.26

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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.