Home / 161,485.20-222,846.57-89,864.55

Finding the Fourth Proportional to 161,485.20, 222,846.57 and 89,864.55

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Solution

The fourth proportional to 161,485.20, 222,846.57 and 89,864.55 is: 124,011.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,485.20 : 222,846.57 = 89,864.55 : x
  2. Step 2: Convert to fraction form
    161,485.20/222,846.57 = 89,864.55/x
  3. Step 3: Cross multiply
    161,485.20x = 222,846.57 × 89,864.55
  4. Step 4: Simplify right side
    161,485.20x = 20,026,006,732.09
  5. Step 5: Solve for x
    x = 20,026,006,732.09/161,485.20
  6. Step 6: Final answer
    x = 124,011.41

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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.