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Finding the Fourth Proportional to 161,359.72, 222,681.90 and 88,765.81

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Solution

The fourth proportional to 161,359.72, 222,681.90 and 88,765.81 is: 122,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,359.72 : 222,681.90 = 88,765.81 : x
  2. Step 2: Convert to fraction form
    161,359.72/222,681.90 = 88,765.81/x
  3. Step 3: Cross multiply
    161,359.72x = 222,681.90 × 88,765.81
  4. Step 4: Simplify right side
    161,359.72x = 19,766,539,225.84
  5. Step 5: Solve for x
    x = 19,766,539,225.84/161,359.72
  6. Step 6: Final answer
    x = 122,499.84

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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.