Home / 143,584.64-215,377.08-68,687.12

Finding the Fourth Proportional to 143,584.64, 215,377.08 and 68,687.12

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Solution

The fourth proportional to 143,584.64, 215,377.08 and 68,687.12 is: 103,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584.64 : 215,377.08 = 68,687.12 : x
  2. Step 2: Convert to fraction form
    143,584.64/215,377.08 = 68,687.12/x
  3. Step 3: Cross multiply
    143,584.64x = 215,377.08 × 68,687.12
  4. Step 4: Simplify right side
    143,584.64x = 14,793,631,339.21
  5. Step 5: Solve for x
    x = 14,793,631,339.21/143,584.64
  6. Step 6: Final answer
    x = 103,030.74

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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.