Home / 127,439.12-191,146.31-38,693.39

Finding the Fourth Proportional to 127,439.12, 191,146.31 and 38,693.39

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Solution

The fourth proportional to 127,439.12, 191,146.31 and 38,693.39 is: 58,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,439.12 : 191,146.31 = 38,693.39 : x
  2. Step 2: Convert to fraction form
    127,439.12/191,146.31 = 38,693.39/x
  3. Step 3: Cross multiply
    127,439.12x = 191,146.31 × 38,693.39
  4. Step 4: Simplify right side
    127,439.12x = 7,396,099,008.64
  5. Step 5: Solve for x
    x = 7,396,099,008.64/127,439.12
  6. Step 6: Final answer
    x = 58,036.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.