Home / 281,457.18-422,186.63-68,224.25

Finding the Fourth Proportional to 281,457.18, 422,186.63 and 68,224.25

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Solution

The fourth proportional to 281,457.18, 422,186.63 and 68,224.25 is: 102,336.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,457.18 : 422,186.63 = 68,224.25 : x
  2. Step 2: Convert to fraction form
    281,457.18/422,186.63 = 68,224.25/x
  3. Step 3: Cross multiply
    281,457.18x = 422,186.63 × 68,224.25
  4. Step 4: Simplify right side
    281,457.18x = 28,803,363,739.72
  5. Step 5: Solve for x
    x = 28,803,363,739.72/281,457.18
  6. Step 6: Final answer
    x = 102,336.57

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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.