Home / 112,880.39-169,329.80-56,691.60

Finding the Fourth Proportional to 112,880.39, 169,329.80 and 56,691.60

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Solution

The fourth proportional to 112,880.39, 169,329.80 and 56,691.60 is: 85,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,880.39 : 169,329.80 = 56,691.60 : x
  2. Step 2: Convert to fraction form
    112,880.39/169,329.80 = 56,691.60/x
  3. Step 3: Cross multiply
    112,880.39x = 169,329.80 × 56,691.60
  4. Step 4: Simplify right side
    112,880.39x = 9,599,577,289.68
  5. Step 5: Solve for x
    x = 9,599,577,289.68/112,880.39
  6. Step 6: Final answer
    x = 85,042.03

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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.