Home / 225,684.32-311,437.58-123,707.54

Finding the Fourth Proportional to 225,684.32, 311,437.58 and 123,707.54

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Solution

The fourth proportional to 225,684.32, 311,437.58 and 123,707.54 is: 170,712.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,684.32 : 311,437.58 = 123,707.54 : x
  2. Step 2: Convert to fraction form
    225,684.32/311,437.58 = 123,707.54/x
  3. Step 3: Cross multiply
    225,684.32x = 311,437.58 × 123,707.54
  4. Step 4: Simplify right side
    225,684.32x = 38,527,177,045.41
  5. Step 5: Solve for x
    x = 38,527,177,045.41/225,684.32
  6. Step 6: Final answer
    x = 170,712.69

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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.