Home / 121,743.75-168,023.07-70,059.79

Finding the Fourth Proportional to 121,743.75, 168,023.07 and 70,059.79

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Solution

The fourth proportional to 121,743.75, 168,023.07 and 70,059.79 is: 96,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,743.75 : 168,023.07 = 70,059.79 : x
  2. Step 2: Convert to fraction form
    121,743.75/168,023.07 = 70,059.79/x
  3. Step 3: Cross multiply
    121,743.75x = 168,023.07 × 70,059.79
  4. Step 4: Simplify right side
    121,743.75x = 11,771,660,404.15
  5. Step 5: Solve for x
    x = 11,771,660,404.15/121,743.75
  6. Step 6: Final answer
    x = 96,692.11

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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.