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Finding the Fourth Proportional to 160,970.81, 222,142.32 and 88,380.39

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Solution

The fourth proportional to 160,970.81, 222,142.32 and 88,380.39 is: 121,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,970.81 : 222,142.32 = 88,380.39 : x
  2. Step 2: Convert to fraction form
    160,970.81/222,142.32 = 88,380.39/x
  3. Step 3: Cross multiply
    160,970.81x = 222,142.32 × 88,380.39
  4. Step 4: Simplify right side
    160,970.81x = 19,633,024,877.10
  5. Step 5: Solve for x
    x = 19,633,024,877.10/160,970.81
  6. Step 6: Final answer
    x = 121,966.37

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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.