Home / 112,770.72-169,244.10-49,634.64

Finding the Fourth Proportional to 112,770.72, 169,244.10 and 49,634.64

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Solution

The fourth proportional to 112,770.72, 169,244.10 and 49,634.64 is: 74,490.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,770.72 : 169,244.10 = 49,634.64 : x
  2. Step 2: Convert to fraction form
    112,770.72/169,244.10 = 49,634.64/x
  3. Step 3: Cross multiply
    112,770.72x = 169,244.10 × 49,634.64
  4. Step 4: Simplify right side
    112,770.72x = 8,400,369,975.62
  5. Step 5: Solve for x
    x = 8,400,369,975.62/112,770.72
  6. Step 6: Final answer
    x = 74,490.70

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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.