Home / 160,985.94-222,115.56-100,617.92

Finding the Fourth Proportional to 160,985.94, 222,115.56 and 100,617.92

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Solution

The fourth proportional to 160,985.94, 222,115.56 and 100,617.92 is: 138,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,985.94 : 222,115.56 = 100,617.92 : x
  2. Step 2: Convert to fraction form
    160,985.94/222,115.56 = 100,617.92/x
  3. Step 3: Cross multiply
    160,985.94x = 222,115.56 × 100,617.92
  4. Step 4: Simplify right side
    160,985.94x = 22,348,804,536.26
  5. Step 5: Solve for x
    x = 22,348,804,536.26/160,985.94
  6. Step 6: Final answer
    x = 138,824.57

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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.