Home / 190,181.56-285,275.58-71,908.60

Finding the Fourth Proportional to 190,181.56, 285,275.58 and 71,908.60

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Solution

The fourth proportional to 190,181.56, 285,275.58 and 71,908.60 is: 107,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,181.56 : 285,275.58 = 71,908.60 : x
  2. Step 2: Convert to fraction form
    190,181.56/285,275.58 = 71,908.60/x
  3. Step 3: Cross multiply
    190,181.56x = 285,275.58 × 71,908.60
  4. Step 4: Simplify right side
    190,181.56x = 20,513,767,571.99
  5. Step 5: Solve for x
    x = 20,513,767,571.99/190,181.56
  6. Step 6: Final answer
    x = 107,864.13

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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.