Home / 143,709.24-198,318.60-83,314.92

Finding the Fourth Proportional to 143,709.24, 198,318.60 and 83,314.92

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Solution

The fourth proportional to 143,709.24, 198,318.60 and 83,314.92 is: 114,974.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,709.24 : 198,318.60 = 83,314.92 : x
  2. Step 2: Convert to fraction form
    143,709.24/198,318.60 = 83,314.92/x
  3. Step 3: Cross multiply
    143,709.24x = 198,318.60 × 83,314.92
  4. Step 4: Simplify right side
    143,709.24x = 16,522,898,293.51
  5. Step 5: Solve for x
    x = 16,522,898,293.51/143,709.24
  6. Step 6: Final answer
    x = 114,974.50

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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.