Home / 115,280.09-172,936.32-40,383.09

Finding the Fourth Proportional to 115,280.09, 172,936.32 and 40,383.09

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Solution

The fourth proportional to 115,280.09, 172,936.32 and 40,383.09 is: 60,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280.09 : 172,936.32 = 40,383.09 : x
  2. Step 2: Convert to fraction form
    115,280.09/172,936.32 = 40,383.09/x
  3. Step 3: Cross multiply
    115,280.09x = 172,936.32 × 40,383.09
  4. Step 4: Simplify right side
    115,280.09x = 6,983,702,823.39
  5. Step 5: Solve for x
    x = 6,983,702,823.39/115,280.09
  6. Step 6: Final answer
    x = 60,580.30

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1.5x scale

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.