Home / 121,212.20-167,272.84-70,254.50

Finding the Fourth Proportional to 121,212.20, 167,272.84 and 70,254.50

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Solution

The fourth proportional to 121,212.20, 167,272.84 and 70,254.50 is: 96,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212.20 : 167,272.84 = 70,254.50 : x
  2. Step 2: Convert to fraction form
    121,212.20/167,272.84 = 70,254.50/x
  3. Step 3: Cross multiply
    121,212.20x = 167,272.84 × 70,254.50
  4. Step 4: Simplify right side
    121,212.20x = 11,751,668,725.78
  5. Step 5: Solve for x
    x = 11,751,668,725.78/121,212.20
  6. Step 6: Final answer
    x = 96,951.20

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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.