Home / 140,858.28-194,386.14-77,194.71

Finding the Fourth Proportional to 140,858.28, 194,386.14 and 77,194.71

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Solution

The fourth proportional to 140,858.28, 194,386.14 and 77,194.71 is: 106,529.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,858.28 : 194,386.14 = 77,194.71 : x
  2. Step 2: Convert to fraction form
    140,858.28/194,386.14 = 77,194.71/x
  3. Step 3: Cross multiply
    140,858.28x = 194,386.14 × 77,194.71
  4. Step 4: Simplify right side
    140,858.28x = 15,005,581,705.32
  5. Step 5: Solve for x
    x = 15,005,581,705.32/140,858.28
  6. Step 6: Final answer
    x = 106,529.64

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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.