Home / 143,613.42-198,210.18-109,557.60

Finding the Fourth Proportional to 143,613.42, 198,210.18 and 109,557.60

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Solution

The fourth proportional to 143,613.42, 198,210.18 and 109,557.60 is: 151,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,613.42 : 198,210.18 = 109,557.60 : x
  2. Step 2: Convert to fraction form
    143,613.42/198,210.18 = 109,557.60/x
  3. Step 3: Cross multiply
    143,613.42x = 198,210.18 × 109,557.60
  4. Step 4: Simplify right side
    143,613.42x = 21,715,431,616.37
  5. Step 5: Solve for x
    x = 21,715,431,616.37/143,613.42
  6. Step 6: Final answer
    x = 151,207.54

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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.