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Finding the Fourth Proportional to 121,199, 167,267.58 and 70,940.12

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Solution

The fourth proportional to 121,199, 167,267.58 and 70,940.12 is: 97,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,199 : 167,267.58 = 70,940.12 : x
  2. Step 2: Convert to fraction form
    121,199/167,267.58 = 70,940.12/x
  3. Step 3: Cross multiply
    121,199x = 167,267.58 × 70,940.12
  4. Step 4: Simplify right side
    121,199x = 11,865,982,197.31
  5. Step 5: Solve for x
    x = 11,865,982,197.31/121,199
  6. Step 6: Final answer
    x = 97,904.95

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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.