Home / 112,730.25-169,121.30-38,858.25

Finding the Fourth Proportional to 112,730.25, 169,121.30 and 38,858.25

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Solution

The fourth proportional to 112,730.25, 169,121.30 and 38,858.25 is: 58,296.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,730.25 : 169,121.30 = 38,858.25 : x
  2. Step 2: Convert to fraction form
    112,730.25/169,121.30 = 38,858.25/x
  3. Step 3: Cross multiply
    112,730.25x = 169,121.30 × 38,858.25
  4. Step 4: Simplify right side
    112,730.25x = 6,571,757,561.43
  5. Step 5: Solve for x
    x = 6,571,757,561.43/112,730.25
  6. Step 6: Final answer
    x = 58,296.31

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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.