Home / 143,806.32-215,709.30-38,625.21

Finding the Fourth Proportional to 143,806.32, 215,709.30 and 38,625.21

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Solution

The fourth proportional to 143,806.32, 215,709.30 and 38,625.21 is: 57,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,806.32 : 215,709.30 = 38,625.21 : x
  2. Step 2: Convert to fraction form
    143,806.32/215,709.30 = 38,625.21/x
  3. Step 3: Cross multiply
    143,806.32x = 215,709.30 × 38,625.21
  4. Step 4: Simplify right side
    143,806.32x = 8,331,817,011.45
  5. Step 5: Solve for x
    x = 8,331,817,011.45/143,806.32
  6. Step 6: Final answer
    x = 57,937.77

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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.