Home / 142,320.96-196,255.44-122,244.12

Finding the Fourth Proportional to 142,320.96, 196,255.44 and 122,244.12

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Solution

The fourth proportional to 142,320.96, 196,255.44 and 122,244.12 is: 168,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,320.96 : 196,255.44 = 122,244.12 : x
  2. Step 2: Convert to fraction form
    142,320.96/196,255.44 = 122,244.12/x
  3. Step 3: Cross multiply
    142,320.96x = 196,255.44 × 122,244.12
  4. Step 4: Simplify right side
    142,320.96x = 23,991,073,558.01
  5. Step 5: Solve for x
    x = 23,991,073,558.01/142,320.96
  6. Step 6: Final answer
    x = 168,570.21

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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.