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Finding the Fourth Proportional to 161,409.41, 242,112.15 and 72,600.20

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Solution

The fourth proportional to 161,409.41, 242,112.15 and 72,600.20 is: 108,899.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,409.41 : 242,112.15 = 72,600.20 : x
  2. Step 2: Convert to fraction form
    161,409.41/242,112.15 = 72,600.20/x
  3. Step 3: Cross multiply
    161,409.41x = 242,112.15 × 72,600.20
  4. Step 4: Simplify right side
    161,409.41x = 17,577,390,512.43
  5. Step 5: Solve for x
    x = 17,577,390,512.43/161,409.41
  6. Step 6: Final answer
    x = 108,899.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.