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Finding the Fourth Proportional to 161,951.62, 223,492.66 and 90,331.59

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Solution

The fourth proportional to 161,951.62, 223,492.66 and 90,331.59 is: 124,657.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,951.62 : 223,492.66 = 90,331.59 : x
  2. Step 2: Convert to fraction form
    161,951.62/223,492.66 = 90,331.59/x
  3. Step 3: Cross multiply
    161,951.62x = 223,492.66 × 90,331.59
  4. Step 4: Simplify right side
    161,951.62x = 20,188,447,331.13
  5. Step 5: Solve for x
    x = 20,188,447,331.13/161,951.62
  6. Step 6: Final answer
    x = 124,657.27

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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.