Home / 143,709.21-215,565.44-54,967.23

Finding the Fourth Proportional to 143,709.21, 215,565.44 and 54,967.23

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Solution

The fourth proportional to 143,709.21, 215,565.44 and 54,967.23 is: 82,451.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,709.21 : 215,565.44 = 54,967.23 : x
  2. Step 2: Convert to fraction form
    143,709.21/215,565.44 = 54,967.23/x
  3. Step 3: Cross multiply
    143,709.21x = 215,565.44 × 54,967.23
  4. Step 4: Simplify right side
    143,709.21x = 11,849,034,845.70
  5. Step 5: Solve for x
    x = 11,849,034,845.70/143,709.21
  6. Step 6: Final answer
    x = 82,451.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.