Home / 147,197.25-203,132.21-80,129.25

Finding the Fourth Proportional to 147,197.25, 203,132.21 and 80,129.25

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Solution

The fourth proportional to 147,197.25, 203,132.21 and 80,129.25 is: 110,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,197.25 : 203,132.21 = 80,129.25 : x
  2. Step 2: Convert to fraction form
    147,197.25/203,132.21 = 80,129.25/x
  3. Step 3: Cross multiply
    147,197.25x = 203,132.21 × 80,129.25
  4. Step 4: Simplify right side
    147,197.25x = 16,276,831,237.50
  5. Step 5: Solve for x
    x = 16,276,831,237.50/147,197.25
  6. Step 6: Final answer
    x = 110,578.37

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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.