Home / 101,181.49-139,634.99-58,174.91

Finding the Fourth Proportional to 101,181.49, 139,634.99 and 58,174.91

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Solution

The fourth proportional to 101,181.49, 139,634.99 and 58,174.91 is: 80,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,181.49 : 139,634.99 = 58,174.91 : x
  2. Step 2: Convert to fraction form
    101,181.49/139,634.99 = 58,174.91/x
  3. Step 3: Cross multiply
    101,181.49x = 139,634.99 × 58,174.91
  4. Step 4: Simplify right side
    101,181.49x = 8,123,252,728.84
  5. Step 5: Solve for x
    x = 8,123,252,728.84/101,181.49
  6. Step 6: Final answer
    x = 80,283.98

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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.