Home / 190,780.38-286,451.64-106,705.26

Finding the Fourth Proportional to 190,780.38, 286,451.64 and 106,705.26

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Solution

The fourth proportional to 190,780.38, 286,451.64 and 106,705.26 is: 160,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,780.38 : 286,451.64 = 106,705.26 : x
  2. Step 2: Convert to fraction form
    190,780.38/286,451.64 = 106,705.26/x
  3. Step 3: Cross multiply
    190,780.38x = 286,451.64 × 106,705.26
  4. Step 4: Simplify right side
    190,780.38x = 30,565,896,723.63
  5. Step 5: Solve for x
    x = 30,565,896,723.63/190,780.38
  6. Step 6: Final answer
    x = 160,215.10

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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.