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Finding the Fourth Proportional to 121,224.73, 167,296.84 and 72,841.45

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Solution

The fourth proportional to 121,224.73, 167,296.84 and 72,841.45 is: 100,525.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,224.73 : 167,296.84 = 72,841.45 : x
  2. Step 2: Convert to fraction form
    121,224.73/167,296.84 = 72,841.45/x
  3. Step 3: Cross multiply
    121,224.73x = 167,296.84 × 72,841.45
  4. Step 4: Simplify right side
    121,224.73x = 12,186,144,999.61
  5. Step 5: Solve for x
    x = 12,186,144,999.61/121,224.73
  6. Step 6: Final answer
    x = 100,525.24

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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.