Home / 110,379.06-152,140.92-78,071.94

Finding the Fourth Proportional to 110,379.06, 152,140.92 and 78,071.94

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Solution

The fourth proportional to 110,379.06, 152,140.92 and 78,071.94 is: 107,610.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,379.06 : 152,140.92 = 78,071.94 : x
  2. Step 2: Convert to fraction form
    110,379.06/152,140.92 = 78,071.94/x
  3. Step 3: Cross multiply
    110,379.06x = 152,140.92 × 78,071.94
  4. Step 4: Simplify right side
    110,379.06x = 11,877,936,777.78
  5. Step 5: Solve for x
    x = 11,877,936,777.78/110,379.06
  6. Step 6: Final answer
    x = 107,610.42

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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.