Home / 205,091.72-282,912.85-120,192.38

Finding the Fourth Proportional to 205,091.72, 282,912.85 and 120,192.38

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Solution

The fourth proportional to 205,091.72, 282,912.85 and 120,192.38 is: 165,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,091.72 : 282,912.85 = 120,192.38 : x
  2. Step 2: Convert to fraction form
    205,091.72/282,912.85 = 120,192.38/x
  3. Step 3: Cross multiply
    205,091.72x = 282,912.85 × 120,192.38
  4. Step 4: Simplify right side
    205,091.72x = 34,003,968,774.08
  5. Step 5: Solve for x
    x = 34,003,968,774.08/205,091.72
  6. Step 6: Final answer
    x = 165,798.84

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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.