Home / 142,888.77-197,183.57-79,226.01

Finding the Fourth Proportional to 142,888.77, 197,183.57 and 79,226.01

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Solution

The fourth proportional to 142,888.77, 197,183.57 and 79,226.01 is: 109,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,888.77 : 197,183.57 = 79,226.01 : x
  2. Step 2: Convert to fraction form
    142,888.77/197,183.57 = 79,226.01/x
  3. Step 3: Cross multiply
    142,888.77x = 197,183.57 × 79,226.01
  4. Step 4: Simplify right side
    142,888.77x = 15,622,067,092.53
  5. Step 5: Solve for x
    x = 15,622,067,092.53/142,888.77
  6. Step 6: Final answer
    x = 109,330.27

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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.