Home / 142,909.30-197,200.62-82,499.40

Finding the Fourth Proportional to 142,909.30, 197,200.62 and 82,499.40

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Solution

The fourth proportional to 142,909.30, 197,200.62 and 82,499.40 is: 113,840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,909.30 : 197,200.62 = 82,499.40 : x
  2. Step 2: Convert to fraction form
    142,909.30/197,200.62 = 82,499.40/x
  3. Step 3: Cross multiply
    142,909.30x = 197,200.62 × 82,499.40
  4. Step 4: Simplify right side
    142,909.30x = 16,268,932,829.63
  5. Step 5: Solve for x
    x = 16,268,932,829.63/142,909.30
  6. Step 6: Final answer
    x = 113,840.97

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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.