Home / 161,319.90-222,615.60-88,722.16

Finding the Fourth Proportional to 161,319.90, 222,615.60 and 88,722.16

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Solution

The fourth proportional to 161,319.90, 222,615.60 and 88,722.16 is: 122,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,319.90 : 222,615.60 = 88,722.16 : x
  2. Step 2: Convert to fraction form
    161,319.90/222,615.60 = 88,722.16/x
  3. Step 3: Cross multiply
    161,319.90x = 222,615.60 × 88,722.16
  4. Step 4: Simplify right side
    161,319.90x = 19,750,936,881.70
  5. Step 5: Solve for x
    x = 19,750,936,881.70/161,319.90
  6. Step 6: Final answer
    x = 122,433.36

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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.