Home / 190,739.15-286,099.75-70,819.97

Finding the Fourth Proportional to 190,739.15, 286,099.75 and 70,819.97

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Solution

The fourth proportional to 190,739.15, 286,099.75 and 70,819.97 is: 106,226.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,739.15 : 286,099.75 = 70,819.97 : x
  2. Step 2: Convert to fraction form
    190,739.15/286,099.75 = 70,819.97/x
  3. Step 3: Cross multiply
    190,739.15x = 286,099.75 × 70,819.97
  4. Step 4: Simplify right side
    190,739.15x = 20,261,575,580.98
  5. Step 5: Solve for x
    x = 20,261,575,580.98/190,739.15
  6. Step 6: Final answer
    x = 106,226.62

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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.