Home / 161,126.82-222,354.86-89,513.55

Finding the Fourth Proportional to 161,126.82, 222,354.86 and 89,513.55

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Solution

The fourth proportional to 161,126.82, 222,354.86 and 89,513.55 is: 123,528.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,126.82 : 222,354.86 = 89,513.55 : x
  2. Step 2: Convert to fraction form
    161,126.82/222,354.86 = 89,513.55/x
  3. Step 3: Cross multiply
    161,126.82x = 222,354.86 × 89,513.55
  4. Step 4: Simplify right side
    161,126.82x = 19,903,772,430.79
  5. Step 5: Solve for x
    x = 19,903,772,430.79/161,126.82
  6. Step 6: Final answer
    x = 123,528.61

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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.