Home / 161,645.62-223,077.87-90,025.63

Finding the Fourth Proportional to 161,645.62, 223,077.87 and 90,025.63

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Solution

The fourth proportional to 161,645.62, 223,077.87 and 90,025.63 is: 124,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,645.62 : 223,077.87 = 90,025.63 : x
  2. Step 2: Convert to fraction form
    161,645.62/223,077.87 = 90,025.63/x
  3. Step 3: Cross multiply
    161,645.62x = 223,077.87 × 90,025.63
  4. Step 4: Simplify right side
    161,645.62x = 20,082,724,220.29
  5. Step 5: Solve for x
    x = 20,082,724,220.29/161,645.62
  6. Step 6: Final answer
    x = 124,239.21

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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.