Home / 118,359.22-163,329.36-64,633.78

Finding the Fourth Proportional to 118,359.22, 163,329.36 and 64,633.78

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Solution

The fourth proportional to 118,359.22, 163,329.36 and 64,633.78 is: 89,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,359.22 : 163,329.36 = 64,633.78 : x
  2. Step 2: Convert to fraction form
    118,359.22/163,329.36 = 64,633.78/x
  3. Step 3: Cross multiply
    118,359.22x = 163,329.36 × 64,633.78
  4. Step 4: Simplify right side
    118,359.22x = 10,556,593,921.78
  5. Step 5: Solve for x
    x = 10,556,593,921.78/118,359.22
  6. Step 6: Final answer
    x = 89,191.14

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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.