Home / 161,930.12-223,463.84-89,331.39

Finding the Fourth Proportional to 161,930.12, 223,463.84 and 89,331.39

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Solution

The fourth proportional to 161,930.12, 223,463.84 and 89,331.39 is: 123,277.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,930.12 : 223,463.84 = 89,331.39 : x
  2. Step 2: Convert to fraction form
    161,930.12/223,463.84 = 89,331.39/x
  3. Step 3: Cross multiply
    161,930.12x = 223,463.84 × 89,331.39
  4. Step 4: Simplify right side
    161,930.12x = 19,962,334,995.28
  5. Step 5: Solve for x
    x = 19,962,334,995.28/161,930.12
  6. Step 6: Final answer
    x = 123,277.47

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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.