Home / 112,877.76-169,340.64-42,755.52

Finding the Fourth Proportional to 112,877.76, 169,340.64 and 42,755.52

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Solution

The fourth proportional to 112,877.76, 169,340.64 and 42,755.52 is: 64,142.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,877.76 : 169,340.64 = 42,755.52 : x
  2. Step 2: Convert to fraction form
    112,877.76/169,340.64 = 42,755.52/x
  3. Step 3: Cross multiply
    112,877.76x = 169,340.64 × 42,755.52
  4. Step 4: Simplify right side
    112,877.76x = 7,240,247,120.33
  5. Step 5: Solve for x
    x = 7,240,247,120.33/112,877.76
  6. Step 6: Final answer
    x = 64,142.37

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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.