Home / 68,176.14-102,268.53-21,430.86

Finding the Fourth Proportional to 68,176.14, 102,268.53 and 21,430.86

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Solution

The fourth proportional to 68,176.14, 102,268.53 and 21,430.86 is: 32,147.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,176.14 : 102,268.53 = 21,430.86 : x
  2. Step 2: Convert to fraction form
    68,176.14/102,268.53 = 21,430.86/x
  3. Step 3: Cross multiply
    68,176.14x = 102,268.53 × 21,430.86
  4. Step 4: Simplify right side
    68,176.14x = 2,191,702,548.84
  5. Step 5: Solve for x
    x = 2,191,702,548.84/68,176.14
  6. Step 6: Final answer
    x = 32,147.65

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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.