Home / 143,035.52-197,259.84-89,325.44

Finding the Fourth Proportional to 143,035.52, 197,259.84 and 89,325.44

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Solution

The fourth proportional to 143,035.52, 197,259.84 and 89,325.44 is: 123,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,035.52 : 197,259.84 = 89,325.44 : x
  2. Step 2: Convert to fraction form
    143,035.52/197,259.84 = 89,325.44/x
  3. Step 3: Cross multiply
    143,035.52x = 197,259.84 × 89,325.44
  4. Step 4: Simplify right side
    143,035.52x = 17,620,322,002.33
  5. Step 5: Solve for x
    x = 17,620,322,002.33/143,035.52
  6. Step 6: Final answer
    x = 123,188.44

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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.