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Finding the Fourth Proportional to 160,969.31, 222,140.25 and 88,378.89

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Solution

The fourth proportional to 160,969.31, 222,140.25 and 88,378.89 is: 121,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,969.31 : 222,140.25 = 88,378.89 : x
  2. Step 2: Convert to fraction form
    160,969.31/222,140.25 = 88,378.89/x
  3. Step 3: Cross multiply
    160,969.31x = 222,140.25 × 88,378.89
  4. Step 4: Simplify right side
    160,969.31x = 19,632,508,719.32
  5. Step 5: Solve for x
    x = 19,632,508,719.32/160,969.31
  6. Step 6: Final answer
    x = 121,964.30

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1.5x scale

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.