Home / 121,823.43-168,107.81-70,832.55

Finding the Fourth Proportional to 121,823.43, 168,107.81 and 70,832.55

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Solution

The fourth proportional to 121,823.43, 168,107.81 and 70,832.55 is: 97,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,823.43 : 168,107.81 = 70,832.55 : x
  2. Step 2: Convert to fraction form
    121,823.43/168,107.81 = 70,832.55/x
  3. Step 3: Cross multiply
    121,823.43x = 168,107.81 × 70,832.55
  4. Step 4: Simplify right side
    121,823.43x = 11,907,503,951.45
  5. Step 5: Solve for x
    x = 11,907,503,951.45/121,823.43
  6. Step 6: Final answer
    x = 97,743.95

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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.