Home / 115,263.96-172,665.90-55,919.58

Finding the Fourth Proportional to 115,263.96, 172,665.90 and 55,919.58

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Solution

The fourth proportional to 115,263.96, 172,665.90 and 55,919.58 is: 83,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,263.96 : 172,665.90 = 55,919.58 : x
  2. Step 2: Convert to fraction form
    115,263.96/172,665.90 = 55,919.58/x
  3. Step 3: Cross multiply
    115,263.96x = 172,665.90 × 55,919.58
  4. Step 4: Simplify right side
    115,263.96x = 9,655,404,608.32
  5. Step 5: Solve for x
    x = 9,655,404,608.32/115,263.96
  6. Step 6: Final answer
    x = 83,767.77

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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.