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Finding the Fourth Proportional to 161,302.50, 222,597.45 and 90,646.50

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Solution

The fourth proportional to 161,302.50, 222,597.45 and 90,646.50 is: 125,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,302.50 : 222,597.45 = 90,646.50 : x
  2. Step 2: Convert to fraction form
    161,302.50/222,597.45 = 90,646.50/x
  3. Step 3: Cross multiply
    161,302.50x = 222,597.45 × 90,646.50
  4. Step 4: Simplify right side
    161,302.50x = 20,177,679,751.43
  5. Step 5: Solve for x
    x = 20,177,679,751.43/161,302.50
  6. Step 6: Final answer
    x = 125,092.17

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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.