Home / 104,358.24-143,815.50-102,438.81

Finding the Fourth Proportional to 104,358.24, 143,815.50 and 102,438.81

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Solution

The fourth proportional to 104,358.24, 143,815.50 and 102,438.81 is: 141,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,358.24 : 143,815.50 = 102,438.81 : x
  2. Step 2: Convert to fraction form
    104,358.24/143,815.50 = 102,438.81/x
  3. Step 3: Cross multiply
    104,358.24x = 143,815.50 × 102,438.81
  4. Step 4: Simplify right side
    104,358.24x = 14,732,288,679.56
  5. Step 5: Solve for x
    x = 14,732,288,679.56/104,358.24
  6. Step 6: Final answer
    x = 141,170.34

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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.