Home / 142,798.44-197,066.82-86,198.76

Finding the Fourth Proportional to 142,798.44, 197,066.82 and 86,198.76

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Solution

The fourth proportional to 142,798.44, 197,066.82 and 86,198.76 is: 118,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,798.44 : 197,066.82 = 86,198.76 : x
  2. Step 2: Convert to fraction form
    142,798.44/197,066.82 = 86,198.76/x
  3. Step 3: Cross multiply
    142,798.44x = 197,066.82 × 86,198.76
  4. Step 4: Simplify right side
    142,798.44x = 16,986,915,521.14
  5. Step 5: Solve for x
    x = 16,986,915,521.14/142,798.44
  6. Step 6: Final answer
    x = 118,957.29

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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.