Home / 117,084.30-161,466.68-77,723.68

Finding the Fourth Proportional to 117,084.30, 161,466.68 and 77,723.68

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Solution

The fourth proportional to 117,084.30, 161,466.68 and 77,723.68 is: 107,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,084.30 : 161,466.68 = 77,723.68 : x
  2. Step 2: Convert to fraction form
    117,084.30/161,466.68 = 77,723.68/x
  3. Step 3: Cross multiply
    117,084.30x = 161,466.68 × 77,723.68
  4. Step 4: Simplify right side
    117,084.30x = 12,549,784,566.98
  5. Step 5: Solve for x
    x = 12,549,784,566.98/117,084.30
  6. Step 6: Final answer
    x = 107,185.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.