Home / 189,939.11-284,426.40-113,989.84

Finding the Fourth Proportional to 189,939.11, 284,426.40 and 113,989.84

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Solution

The fourth proportional to 189,939.11, 284,426.40 and 113,989.84 is: 170,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,939.11 : 284,426.40 = 113,989.84 : x
  2. Step 2: Convert to fraction form
    189,939.11/284,426.40 = 113,989.84/x
  3. Step 3: Cross multiply
    189,939.11x = 284,426.40 × 113,989.84
  4. Step 4: Simplify right side
    189,939.11x = 32,421,719,827.78
  5. Step 5: Solve for x
    x = 32,421,719,827.78/189,939.11
  6. Step 6: Final answer
    x = 170,695.33

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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.