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Finding the Fourth Proportional to 161,342.66, 222,649.88 and 89,713.56

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Solution

The fourth proportional to 161,342.66, 222,649.88 and 89,713.56 is: 123,803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,342.66 : 222,649.88 = 89,713.56 : x
  2. Step 2: Convert to fraction form
    161,342.66/222,649.88 = 89,713.56/x
  3. Step 3: Cross multiply
    161,342.66x = 222,649.88 × 89,713.56
  4. Step 4: Simplify right side
    161,342.66x = 19,974,713,368.37
  5. Step 5: Solve for x
    x = 19,974,713,368.37/161,342.66
  6. Step 6: Final answer
    x = 123,803.05

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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.