Home / 161,385.48-222,686.28-89,765.28

Finding the Fourth Proportional to 161,385.48, 222,686.28 and 89,765.28

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Solution

The fourth proportional to 161,385.48, 222,686.28 and 89,765.28 is: 123,861.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,385.48 : 222,686.28 = 89,765.28 : x
  2. Step 2: Convert to fraction form
    161,385.48/222,686.28 = 89,765.28/x
  3. Step 3: Cross multiply
    161,385.48x = 222,686.28 × 89,765.28
  4. Step 4: Simplify right side
    161,385.48x = 19,989,496,276.36
  5. Step 5: Solve for x
    x = 19,989,496,276.36/161,385.48
  6. Step 6: Final answer
    x = 123,861.80

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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.