Home / 190,018.40-284,849.40-71,769.20

Finding the Fourth Proportional to 190,018.40, 284,849.40 and 71,769.20

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Solution

The fourth proportional to 190,018.40, 284,849.40 and 71,769.20 is: 107,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,018.40 : 284,849.40 = 71,769.20 : x
  2. Step 2: Convert to fraction form
    190,018.40/284,849.40 = 71,769.20/x
  3. Step 3: Cross multiply
    190,018.40x = 284,849.40 × 71,769.20
  4. Step 4: Simplify right side
    190,018.40x = 20,443,413,558.48
  5. Step 5: Solve for x
    x = 20,443,413,558.48/190,018.40
  6. Step 6: Final answer
    x = 107,586.49

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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.