Home / 142,753.04-197,091.64-91,788.64

Finding the Fourth Proportional to 142,753.04, 197,091.64 and 91,788.64

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Solution

The fourth proportional to 142,753.04, 197,091.64 and 91,788.64 is: 126,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,753.04 : 197,091.64 = 91,788.64 : x
  2. Step 2: Convert to fraction form
    142,753.04/197,091.64 = 91,788.64/x
  3. Step 3: Cross multiply
    142,753.04x = 197,091.64 × 91,788.64
  4. Step 4: Simplify right side
    142,753.04x = 18,090,773,590.97
  5. Step 5: Solve for x
    x = 18,090,773,590.97/142,753.04
  6. Step 6: Final answer
    x = 126,727.76

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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.