Home / 161,124.90-222,346.18-89,509.42

Finding the Fourth Proportional to 161,124.90, 222,346.18 and 89,509.42

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Solution

The fourth proportional to 161,124.90, 222,346.18 and 89,509.42 is: 123,519.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,124.90 : 222,346.18 = 89,509.42 : x
  2. Step 2: Convert to fraction form
    161,124.90/222,346.18 = 89,509.42/x
  3. Step 3: Cross multiply
    161,124.90x = 222,346.18 × 89,509.42
  4. Step 4: Simplify right side
    161,124.90x = 19,902,077,163.47
  5. Step 5: Solve for x
    x = 19,902,077,163.47/161,124.90
  6. Step 6: Final answer
    x = 123,519.57

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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.