Home / 135,779.49-203,603.40-79,637.94

Finding the Fourth Proportional to 135,779.49, 203,603.40 and 79,637.94

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Solution

The fourth proportional to 135,779.49, 203,603.40 and 79,637.94 is: 119,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,779.49 : 203,603.40 = 79,637.94 : x
  2. Step 2: Convert to fraction form
    135,779.49/203,603.40 = 79,637.94/x
  3. Step 3: Cross multiply
    135,779.49x = 203,603.40 × 79,637.94
  4. Step 4: Simplify right side
    135,779.49x = 16,214,555,353.00
  5. Step 5: Solve for x
    x = 16,214,555,353.00/135,779.49
  6. Step 6: Final answer
    x = 119,418.30

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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.