Home / 190,222.49-285,389.28-85,016.86

Finding the Fourth Proportional to 190,222.49, 285,389.28 and 85,016.86

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Solution

The fourth proportional to 190,222.49, 285,389.28 and 85,016.86 is: 127,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,222.49 : 285,389.28 = 85,016.86 : x
  2. Step 2: Convert to fraction form
    190,222.49/285,389.28 = 85,016.86/x
  3. Step 3: Cross multiply
    190,222.49x = 285,389.28 × 85,016.86
  4. Step 4: Simplify right side
    190,222.49x = 24,262,900,463.26
  5. Step 5: Solve for x
    x = 24,262,900,463.26/190,222.49
  6. Step 6: Final answer
    x = 127,550.11

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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.