Home / 161,386.48-222,687.66-89,766.28

Finding the Fourth Proportional to 161,386.48, 222,687.66 and 89,766.28

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Solution

The fourth proportional to 161,386.48, 222,687.66 and 89,766.28 is: 123,863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,386.48 : 222,687.66 = 89,766.28 : x
  2. Step 2: Convert to fraction form
    161,386.48/222,687.66 = 89,766.28/x
  3. Step 3: Cross multiply
    161,386.48x = 222,687.66 × 89,766.28
  4. Step 4: Simplify right side
    161,386.48x = 19,989,842,840.10
  5. Step 5: Solve for x
    x = 19,989,842,840.10/161,386.48
  6. Step 6: Final answer
    x = 123,863.18

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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.