Home / 118,530.76-163,495.38-76,021.96

Finding the Fourth Proportional to 118,530.76, 163,495.38 and 76,021.96

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Solution

The fourth proportional to 118,530.76, 163,495.38 and 76,021.96 is: 104,860.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,530.76 : 163,495.38 = 76,021.96 : x
  2. Step 2: Convert to fraction form
    118,530.76/163,495.38 = 76,021.96/x
  3. Step 3: Cross multiply
    118,530.76x = 163,495.38 × 76,021.96
  4. Step 4: Simplify right side
    118,530.76x = 12,429,239,238.54
  5. Step 5: Solve for x
    x = 12,429,239,238.54/118,530.76
  6. Step 6: Final answer
    x = 104,860.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.