Home / 189,119.57-260,986.12-108,545.02

Finding the Fourth Proportional to 189,119.57, 260,986.12 and 108,545.02

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Solution

The fourth proportional to 189,119.57, 260,986.12 and 108,545.02 is: 149,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,119.57 : 260,986.12 = 108,545.02 : x
  2. Step 2: Convert to fraction form
    189,119.57/260,986.12 = 108,545.02/x
  3. Step 3: Cross multiply
    189,119.57x = 260,986.12 × 108,545.02
  4. Step 4: Simplify right side
    189,119.57x = 28,328,742,691.29
  5. Step 5: Solve for x
    x = 28,328,742,691.29/189,119.57
  6. Step 6: Final answer
    x = 149,792.77

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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.