Home / 190,855.20-285,699.60-148,864.80

Finding the Fourth Proportional to 190,855.20, 285,699.60 and 148,864.80

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Solution

The fourth proportional to 190,855.20, 285,699.60 and 148,864.80 is: 222,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,855.20 : 285,699.60 = 148,864.80 : x
  2. Step 2: Convert to fraction form
    190,855.20/285,699.60 = 148,864.80/x
  3. Step 3: Cross multiply
    190,855.20x = 285,699.60 × 148,864.80
  4. Step 4: Simplify right side
    190,855.20x = 42,530,613,814.08
  5. Step 5: Solve for x
    x = 42,530,613,814.08/190,855.20
  6. Step 6: Final answer
    x = 222,842.31

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1.5x scale

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.