Home / 161,541.28-222,923.92-89,920.80

Finding the Fourth Proportional to 161,541.28, 222,923.92 and 89,920.80

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Solution

The fourth proportional to 161,541.28, 222,923.92 and 89,920.80 is: 124,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,541.28 : 222,923.92 = 89,920.80 : x
  2. Step 2: Convert to fraction form
    161,541.28/222,923.92 = 89,920.80/x
  3. Step 3: Cross multiply
    161,541.28x = 222,923.92 × 89,920.80
  4. Step 4: Simplify right side
    161,541.28x = 20,045,497,225.54
  5. Step 5: Solve for x
    x = 20,045,497,225.54/161,541.28
  6. Step 6: Final answer
    x = 124,089.01

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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.