Home / 143,002.17-197,339.63-79,338.33

Finding the Fourth Proportional to 143,002.17, 197,339.63 and 79,338.33

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Solution

The fourth proportional to 143,002.17, 197,339.63 and 79,338.33 is: 109,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,002.17 : 197,339.63 = 79,338.33 : x
  2. Step 2: Convert to fraction form
    143,002.17/197,339.63 = 79,338.33/x
  3. Step 3: Cross multiply
    143,002.17x = 197,339.63 × 79,338.33
  4. Step 4: Simplify right side
    143,002.17x = 15,656,596,290.33
  5. Step 5: Solve for x
    x = 15,656,596,290.33/143,002.17
  6. Step 6: Final answer
    x = 109,485.03

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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.