Home / 121,499.40-167,668.71-67,784.46

Finding the Fourth Proportional to 121,499.40, 167,668.71 and 67,784.46

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Solution

The fourth proportional to 121,499.40, 167,668.71 and 67,784.46 is: 93,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,499.40 : 167,668.71 = 67,784.46 : x
  2. Step 2: Convert to fraction form
    121,499.40/167,668.71 = 67,784.46/x
  3. Step 3: Cross multiply
    121,499.40x = 167,668.71 × 67,784.46
  4. Step 4: Simplify right side
    121,499.40x = 11,365,332,966.25
  5. Step 5: Solve for x
    x = 11,365,332,966.25/121,499.40
  6. Step 6: Final answer
    x = 93,542.30

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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.