Home / 121,496.76-167,556.51-76,179.69

Finding the Fourth Proportional to 121,496.76, 167,556.51 and 76,179.69

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Solution

The fourth proportional to 121,496.76, 167,556.51 and 76,179.69 is: 105,059.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,496.76 : 167,556.51 = 76,179.69 : x
  2. Step 2: Convert to fraction form
    121,496.76/167,556.51 = 76,179.69/x
  3. Step 3: Cross multiply
    121,496.76x = 167,556.51 × 76,179.69
  4. Step 4: Simplify right side
    121,496.76x = 12,764,402,989.28
  5. Step 5: Solve for x
    x = 12,764,402,989.28/121,496.76
  6. Step 6: Final answer
    x = 105,059.62

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1.5x scale

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.