Home / 189,228.24-284,039.19-139,364.64

Finding the Fourth Proportional to 189,228.24, 284,039.19 and 139,364.64

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Solution

The fourth proportional to 189,228.24, 284,039.19 and 139,364.64 is: 209,191.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,228.24 : 284,039.19 = 139,364.64 : x
  2. Step 2: Convert to fraction form
    189,228.24/284,039.19 = 139,364.64/x
  3. Step 3: Cross multiply
    189,228.24x = 284,039.19 × 139,364.64
  4. Step 4: Simplify right side
    189,228.24x = 39,585,019,460.24
  5. Step 5: Solve for x
    x = 39,585,019,460.24/189,228.24
  6. Step 6: Final answer
    x = 209,191.92

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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.