Home / 189,916.36-284,673.66-71,536.48

Finding the Fourth Proportional to 189,916.36, 284,673.66 and 71,536.48

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Solution

The fourth proportional to 189,916.36, 284,673.66 and 71,536.48 is: 107,229.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,916.36 : 284,673.66 = 71,536.48 : x
  2. Step 2: Convert to fraction form
    189,916.36/284,673.66 = 71,536.48/x
  3. Step 3: Cross multiply
    189,916.36x = 284,673.66 × 71,536.48
  4. Step 4: Simplify right side
    189,916.36x = 20,364,551,585.12
  5. Step 5: Solve for x
    x = 20,364,551,585.12/189,916.36
  6. Step 6: Final answer
    x = 107,229.05

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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.