Home / 161,143.40-222,381.78-89,526.44

Finding the Fourth Proportional to 161,143.40, 222,381.78 and 89,526.44

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Solution

The fourth proportional to 161,143.40, 222,381.78 and 89,526.44 is: 123,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,143.40 : 222,381.78 = 89,526.44 : x
  2. Step 2: Convert to fraction form
    161,143.40/222,381.78 = 89,526.44/x
  3. Step 3: Cross multiply
    161,143.40x = 222,381.78 × 89,526.44
  4. Step 4: Simplify right side
    161,143.40x = 19,909,049,084.26
  5. Step 5: Solve for x
    x = 19,909,049,084.26/161,143.40
  6. Step 6: Final answer
    x = 123,548.65

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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.