Home / 143,860.98-198,528.36-80,197.40

Finding the Fourth Proportional to 143,860.98, 198,528.36 and 80,197.40

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Solution

The fourth proportional to 143,860.98, 198,528.36 and 80,197.40 is: 110,672.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,860.98 : 198,528.36 = 80,197.40 : x
  2. Step 2: Convert to fraction form
    143,860.98/198,528.36 = 80,197.40/x
  3. Step 3: Cross multiply
    143,860.98x = 198,528.36 × 80,197.40
  4. Step 4: Simplify right side
    143,860.98x = 15,921,458,298.26
  5. Step 5: Solve for x
    x = 15,921,458,298.26/143,860.98
  6. Step 6: Final answer
    x = 110,672.53

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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.