Home / 143,421.44-198,107.52-123,480.32

Finding the Fourth Proportional to 143,421.44, 198,107.52 and 123,480.32

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Solution

The fourth proportional to 143,421.44, 198,107.52 and 123,480.32 is: 170,562.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,421.44 : 198,107.52 = 123,480.32 : x
  2. Step 2: Convert to fraction form
    143,421.44/198,107.52 = 123,480.32/x
  3. Step 3: Cross multiply
    143,421.44x = 198,107.52 × 123,480.32
  4. Step 4: Simplify right side
    143,421.44x = 24,462,379,964.01
  5. Step 5: Solve for x
    x = 24,462,379,964.01/143,421.44
  6. Step 6: Final answer
    x = 170,562.92

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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.