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Finding the Fourth Proportional to 143,161.68, 197,548.68 and 83,580.24

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Solution

The fourth proportional to 143,161.68, 197,548.68 and 83,580.24 is: 115,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,161.68 : 197,548.68 = 83,580.24 : x
  2. Step 2: Convert to fraction form
    143,161.68/197,548.68 = 83,580.24/x
  3. Step 3: Cross multiply
    143,161.68x = 197,548.68 × 83,580.24
  4. Step 4: Simplify right side
    143,161.68x = 16,511,166,086.08
  5. Step 5: Solve for x
    x = 16,511,166,086.08/143,161.68
  6. Step 6: Final answer
    x = 115,332.30

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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.