Home / 135,256.01-202,918.61-79,143.30

Finding the Fourth Proportional to 135,256.01, 202,918.61 and 79,143.30

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Solution

The fourth proportional to 135,256.01, 202,918.61 and 79,143.30 is: 118,735.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,256.01 : 202,918.61 = 79,143.30 : x
  2. Step 2: Convert to fraction form
    135,256.01/202,918.61 = 79,143.30/x
  3. Step 3: Cross multiply
    135,256.01x = 202,918.61 × 79,143.30
  4. Step 4: Simplify right side
    135,256.01x = 16,059,648,031.10
  5. Step 5: Solve for x
    x = 16,059,648,031.10/135,256.01
  6. Step 6: Final answer
    x = 118,735.19

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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.