Home / 200,887.09-277,203.98-120,312.54

Finding the Fourth Proportional to 200,887.09, 277,203.98 and 120,312.54

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Solution

The fourth proportional to 200,887.09, 277,203.98 and 120,312.54 is: 166,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,887.09 : 277,203.98 = 120,312.54 : x
  2. Step 2: Convert to fraction form
    200,887.09/277,203.98 = 120,312.54/x
  3. Step 3: Cross multiply
    200,887.09x = 277,203.98 × 120,312.54
  4. Step 4: Simplify right side
    200,887.09x = 33,351,115,232.69
  5. Step 5: Solve for x
    x = 33,351,115,232.69/200,887.09
  6. Step 6: Final answer
    x = 166,019.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.