Home / 190,465.26-285,700.31-131,285.04

Finding the Fourth Proportional to 190,465.26, 285,700.31 and 131,285.04

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Solution

The fourth proportional to 190,465.26, 285,700.31 and 131,285.04 is: 196,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,465.26 : 285,700.31 = 131,285.04 : x
  2. Step 2: Convert to fraction form
    190,465.26/285,700.31 = 131,285.04/x
  3. Step 3: Cross multiply
    190,465.26x = 285,700.31 × 131,285.04
  4. Step 4: Simplify right side
    190,465.26x = 37,508,176,129.36
  5. Step 5: Solve for x
    x = 37,508,176,129.36/190,465.26
  6. Step 6: Final answer
    x = 196,929.23

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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.