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Finding the Fourth Proportional to 121,216.50, 167,278.04 and 70,914.42

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Solution

The fourth proportional to 121,216.50, 167,278.04 and 70,914.42 is: 97,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,216.50 : 167,278.04 = 70,914.42 : x
  2. Step 2: Convert to fraction form
    121,216.50/167,278.04 = 70,914.42/x
  3. Step 3: Cross multiply
    121,216.50x = 167,278.04 × 70,914.42
  4. Step 4: Simplify right side
    121,216.50x = 11,862,425,185.34
  5. Step 5: Solve for x
    x = 11,862,425,185.34/121,216.50
  6. Step 6: Final answer
    x = 97,861.47

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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.