Home / 135,512.36-203,160-64,399.31

Finding the Fourth Proportional to 135,512.36, 203,160 and 64,399.31

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Solution

The fourth proportional to 135,512.36, 203,160 and 64,399.31 is: 96,547.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,512.36 : 203,160 = 64,399.31 : x
  2. Step 2: Convert to fraction form
    135,512.36/203,160 = 64,399.31/x
  3. Step 3: Cross multiply
    135,512.36x = 203,160 × 64,399.31
  4. Step 4: Simplify right side
    135,512.36x = 13,083,363,819.60
  5. Step 5: Solve for x
    x = 13,083,363,819.60/135,512.36
  6. Step 6: Final answer
    x = 96,547.38

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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.