Home / 190,250.13-285,394.05-70,338.54

Finding the Fourth Proportional to 190,250.13, 285,394.05 and 70,338.54

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Solution

The fourth proportional to 190,250.13, 285,394.05 and 70,338.54 is: 105,514.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,250.13 : 285,394.05 = 70,338.54 : x
  2. Step 2: Convert to fraction form
    190,250.13/285,394.05 = 70,338.54/x
  3. Step 3: Cross multiply
    190,250.13x = 285,394.05 × 70,338.54
  4. Step 4: Simplify right side
    190,250.13x = 20,074,200,801.69
  5. Step 5: Solve for x
    x = 20,074,200,801.69/190,250.13
  6. Step 6: Final answer
    x = 105,514.78

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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.