Home / 190,964.40-286,539.48-77,107.56

Finding the Fourth Proportional to 190,964.40, 286,539.48 and 77,107.56

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Solution

The fourth proportional to 190,964.40, 286,539.48 and 77,107.56 is: 115,698.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,964.40 : 286,539.48 = 77,107.56 : x
  2. Step 2: Convert to fraction form
    190,964.40/286,539.48 = 77,107.56/x
  3. Step 3: Cross multiply
    190,964.40x = 286,539.48 × 77,107.56
  4. Step 4: Simplify right side
    190,964.40x = 22,094,360,146.47
  5. Step 5: Solve for x
    x = 22,094,360,146.47/190,964.40
  6. Step 6: Final answer
    x = 115,698.84

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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.