Home / 189,951.10-262,138.98-108,291.42

Finding the Fourth Proportional to 189,951.10, 262,138.98 and 108,291.42

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Solution

The fourth proportional to 189,951.10, 262,138.98 and 108,291.42 is: 149,445.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,951.10 : 262,138.98 = 108,291.42 : x
  2. Step 2: Convert to fraction form
    189,951.10/262,138.98 = 108,291.42/x
  3. Step 3: Cross multiply
    189,951.10x = 262,138.98 × 108,291.42
  4. Step 4: Simplify right side
    189,951.10x = 28,387,402,381.55
  5. Step 5: Solve for x
    x = 28,387,402,381.55/189,951.10
  6. Step 6: Final answer
    x = 149,445.84

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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.