Home / 160,968.72-222,113.16-89,349.28

Finding the Fourth Proportional to 160,968.72, 222,113.16 and 89,349.28

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Solution

The fourth proportional to 160,968.72, 222,113.16 and 89,349.28 is: 123,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,968.72 : 222,113.16 = 89,349.28 : x
  2. Step 2: Convert to fraction form
    160,968.72/222,113.16 = 89,349.28/x
  3. Step 3: Cross multiply
    160,968.72x = 222,113.16 × 89,349.28
  4. Step 4: Simplify right side
    160,968.72x = 19,845,650,924.52
  5. Step 5: Solve for x
    x = 19,845,650,924.52/160,968.72
  6. Step 6: Final answer
    x = 123,288.87

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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.