Home / 121,668.55-167,886-67,946.72

Finding the Fourth Proportional to 121,668.55, 167,886 and 67,946.72

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Solution

The fourth proportional to 121,668.55, 167,886 and 67,946.72 is: 93,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,668.55 : 167,886 = 67,946.72 : x
  2. Step 2: Convert to fraction form
    121,668.55/167,886 = 67,946.72/x
  3. Step 3: Cross multiply
    121,668.55x = 167,886 × 67,946.72
  4. Step 4: Simplify right side
    121,668.55x = 11,407,303,033.92
  5. Step 5: Solve for x
    x = 11,407,303,033.92/121,668.55
  6. Step 6: Final answer
    x = 93,757.20

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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.