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Finding the Fourth Proportional to 161,427.76, 222,880.02 and 101,022.80

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Solution

The fourth proportional to 161,427.76, 222,880.02 and 101,022.80 is: 139,480.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,427.76 : 222,880.02 = 101,022.80 : x
  2. Step 2: Convert to fraction form
    161,427.76/222,880.02 = 101,022.80/x
  3. Step 3: Cross multiply
    161,427.76x = 222,880.02 × 101,022.80
  4. Step 4: Simplify right side
    161,427.76x = 22,515,963,684.46
  5. Step 5: Solve for x
    x = 22,515,963,684.46/161,427.76
  6. Step 6: Final answer
    x = 139,480.12

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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.