Home / 190,861.96-286,293-72,505.36

Finding the Fourth Proportional to 190,861.96, 286,293 and 72,505.36

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Solution

The fourth proportional to 190,861.96, 286,293 and 72,505.36 is: 108,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,861.96 : 286,293 = 72,505.36 : x
  2. Step 2: Convert to fraction form
    190,861.96/286,293 = 72,505.36/x
  3. Step 3: Cross multiply
    190,861.96x = 286,293 × 72,505.36
  4. Step 4: Simplify right side
    190,861.96x = 20,757,777,030.48
  5. Step 5: Solve for x
    x = 20,757,777,030.48/190,861.96
  6. Step 6: Final answer
    x = 108,758.06

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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.