Home / 189,035.60-260,872.14-102,998.65

Finding the Fourth Proportional to 189,035.60, 260,872.14 and 102,998.65

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Solution

The fourth proportional to 189,035.60, 260,872.14 and 102,998.65 is: 142,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,035.60 : 260,872.14 = 102,998.65 : x
  2. Step 2: Convert to fraction form
    189,035.60/260,872.14 = 102,998.65/x
  3. Step 3: Cross multiply
    189,035.60x = 260,872.14 × 102,998.65
  4. Step 4: Simplify right side
    189,035.60x = 26,869,477,590.43
  5. Step 5: Solve for x
    x = 26,869,477,590.43/189,035.60
  6. Step 6: Final answer
    x = 142,139.77

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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.