Home / 161,320.17-222,615.45-89,695.02

Finding the Fourth Proportional to 161,320.17, 222,615.45 and 89,695.02

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Solution

The fourth proportional to 161,320.17, 222,615.45 and 89,695.02 is: 123,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,320.17 : 222,615.45 = 89,695.02 : x
  2. Step 2: Convert to fraction form
    161,320.17/222,615.45 = 89,695.02/x
  3. Step 3: Cross multiply
    161,320.17x = 222,615.45 × 89,695.02
  4. Step 4: Simplify right side
    161,320.17x = 19,967,497,240.06
  5. Step 5: Solve for x
    x = 19,967,497,240.06/161,320.17
  6. Step 6: Final answer
    x = 123,775.58

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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.