Home / 143,977.55-215,951.73-38,807.15

Finding the Fourth Proportional to 143,977.55, 215,951.73 and 38,807.15

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Solution

The fourth proportional to 143,977.55, 215,951.73 and 38,807.15 is: 58,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,977.55 : 215,951.73 = 38,807.15 : x
  2. Step 2: Convert to fraction form
    143,977.55/215,951.73 = 38,807.15/x
  3. Step 3: Cross multiply
    143,977.55x = 215,951.73 × 38,807.15
  4. Step 4: Simplify right side
    143,977.55x = 8,380,470,099.11
  5. Step 5: Solve for x
    x = 8,380,470,099.11/143,977.55
  6. Step 6: Final answer
    x = 58,206.79

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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.