Home / 139,927.30-209,922.13-51,178.84

Finding the Fourth Proportional to 139,927.30, 209,922.13 and 51,178.84

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Solution

The fourth proportional to 139,927.30, 209,922.13 and 51,178.84 is: 76,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927.30 : 209,922.13 = 51,178.84 : x
  2. Step 2: Convert to fraction form
    139,927.30/209,922.13 = 51,178.84/x
  3. Step 3: Cross multiply
    139,927.30x = 209,922.13 × 51,178.84
  4. Step 4: Simplify right side
    139,927.30x = 10,743,570,642.90
  5. Step 5: Solve for x
    x = 10,743,570,642.90/139,927.30
  6. Step 6: Final answer
    x = 76,779.66

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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.