Home / 225,729.69-311,505.26-123,753.93

Finding the Fourth Proportional to 225,729.69, 311,505.26 and 123,753.93

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Solution

The fourth proportional to 225,729.69, 311,505.26 and 123,753.93 is: 170,779.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,729.69 : 311,505.26 = 123,753.93 : x
  2. Step 2: Convert to fraction form
    225,729.69/311,505.26 = 123,753.93/x
  3. Step 3: Cross multiply
    225,729.69x = 311,505.26 × 123,753.93
  4. Step 4: Simplify right side
    225,729.69x = 38,549,999,521.90
  5. Step 5: Solve for x
    x = 38,549,999,521.90/225,729.69
  6. Step 6: Final answer
    x = 170,779.48

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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.