Home / 139,755.48-192,860.08-76,092.20

Finding the Fourth Proportional to 139,755.48, 192,860.08 and 76,092.20

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Solution

The fourth proportional to 139,755.48, 192,860.08 and 76,092.20 is: 105,005.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,755.48 : 192,860.08 = 76,092.20 : x
  2. Step 2: Convert to fraction form
    139,755.48/192,860.08 = 76,092.20/x
  3. Step 3: Cross multiply
    139,755.48x = 192,860.08 × 76,092.20
  4. Step 4: Simplify right side
    139,755.48x = 14,675,147,779.38
  5. Step 5: Solve for x
    x = 14,675,147,779.38/139,755.48
  6. Step 6: Final answer
    x = 105,005.88

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1.5x scale

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.