Home / 212,172.32-292,797.44-121,557.60

Finding the Fourth Proportional to 212,172.32, 292,797.44 and 121,557.60

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Solution

The fourth proportional to 212,172.32, 292,797.44 and 121,557.60 is: 167,749.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,172.32 : 292,797.44 = 121,557.60 : x
  2. Step 2: Convert to fraction form
    212,172.32/292,797.44 = 121,557.60/x
  3. Step 3: Cross multiply
    212,172.32x = 292,797.44 × 121,557.60
  4. Step 4: Simplify right side
    212,172.32x = 35,591,754,092.54
  5. Step 5: Solve for x
    x = 35,591,754,092.54/212,172.32
  6. Step 6: Final answer
    x = 167,749.28

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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.