Home / 190,628.86-285,743.76-64,225.43

Finding the Fourth Proportional to 190,628.86, 285,743.76 and 64,225.43

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Solution

The fourth proportional to 190,628.86, 285,743.76 and 64,225.43 is: 96,270.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,628.86 : 285,743.76 = 64,225.43 : x
  2. Step 2: Convert to fraction form
    190,628.86/285,743.76 = 64,225.43/x
  3. Step 3: Cross multiply
    190,628.86x = 285,743.76 × 64,225.43
  4. Step 4: Simplify right side
    190,628.86x = 18,352,015,855.82
  5. Step 5: Solve for x
    x = 18,352,015,855.82/190,628.86
  6. Step 6: Final answer
    x = 96,270.92

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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.