Home / 112,905.60-169,358.69-38,078.31

Finding the Fourth Proportional to 112,905.60, 169,358.69 and 38,078.31

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Solution

The fourth proportional to 112,905.60, 169,358.69 and 38,078.31 is: 57,117.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,905.60 : 169,358.69 = 38,078.31 : x
  2. Step 2: Convert to fraction form
    112,905.60/169,358.69 = 38,078.31/x
  3. Step 3: Cross multiply
    112,905.60x = 169,358.69 × 38,078.31
  4. Step 4: Simplify right side
    112,905.60x = 6,448,891,852.22
  5. Step 5: Solve for x
    x = 6,448,891,852.22/112,905.60
  6. Step 6: Final answer
    x = 57,117.56

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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.