Home / 161,436.11-222,781.95-89,816.18

Finding the Fourth Proportional to 161,436.11, 222,781.95 and 89,816.18

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Solution

The fourth proportional to 161,436.11, 222,781.95 and 89,816.18 is: 123,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,436.11 : 222,781.95 = 89,816.18 : x
  2. Step 2: Convert to fraction form
    161,436.11/222,781.95 = 89,816.18/x
  3. Step 3: Cross multiply
    161,436.11x = 222,781.95 × 89,816.18
  4. Step 4: Simplify right side
    161,436.11x = 20,009,424,278.91
  5. Step 5: Solve for x
    x = 20,009,424,278.91/161,436.11
  6. Step 6: Final answer
    x = 123,946.40

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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.