Home / 161,478.93-222,686.31-123,170.40

Finding the Fourth Proportional to 161,478.93, 222,686.31 and 123,170.40

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Solution

The fourth proportional to 161,478.93, 222,686.31 and 123,170.40 is: 169,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,478.93 : 222,686.31 = 123,170.40 : x
  2. Step 2: Convert to fraction form
    161,478.93/222,686.31 = 123,170.40/x
  3. Step 3: Cross multiply
    161,478.93x = 222,686.31 × 123,170.40
  4. Step 4: Simplify right side
    161,478.93x = 27,428,361,877.22
  5. Step 5: Solve for x
    x = 27,428,361,877.22/161,478.93
  6. Step 6: Final answer
    x = 169,857.22

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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.