Home / 190,203.40-285,288.60-115,301.52

Finding the Fourth Proportional to 190,203.40, 285,288.60 and 115,301.52

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Solution

The fourth proportional to 190,203.40, 285,288.60 and 115,301.52 is: 172,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,203.40 : 285,288.60 = 115,301.52 : x
  2. Step 2: Convert to fraction form
    190,203.40/285,288.60 = 115,301.52/x
  3. Step 3: Cross multiply
    190,203.40x = 285,288.60 × 115,301.52
  4. Step 4: Simplify right side
    190,203.40x = 32,894,209,218.67
  5. Step 5: Solve for x
    x = 32,894,209,218.67/190,203.40
  6. Step 6: Final answer
    x = 172,942.28

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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.