Home / 190,775.45-286,108.20-76,923.27

Finding the Fourth Proportional to 190,775.45, 286,108.20 and 76,923.27

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Solution

The fourth proportional to 190,775.45, 286,108.20 and 76,923.27 is: 115,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,775.45 : 286,108.20 = 76,923.27 : x
  2. Step 2: Convert to fraction form
    190,775.45/286,108.20 = 76,923.27/x
  3. Step 3: Cross multiply
    190,775.45x = 286,108.20 × 76,923.27
  4. Step 4: Simplify right side
    190,775.45x = 22,008,378,317.81
  5. Step 5: Solve for x
    x = 22,008,378,317.81/190,775.45
  6. Step 6: Final answer
    x = 115,362.74

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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.