Home / 161,528.31-222,909.07-89,906.79

Finding the Fourth Proportional to 161,528.31, 222,909.07 and 89,906.79

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Solution

The fourth proportional to 161,528.31, 222,909.07 and 89,906.79 is: 124,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,528.31 : 222,909.07 = 89,906.79 : x
  2. Step 2: Convert to fraction form
    161,528.31/222,909.07 = 89,906.79/x
  3. Step 3: Cross multiply
    161,528.31x = 222,909.07 × 89,906.79
  4. Step 4: Simplify right side
    161,528.31x = 20,041,038,945.59
  5. Step 5: Solve for x
    x = 20,041,038,945.59/161,528.31
  6. Step 6: Final answer
    x = 124,071.38

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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.