Home / 112,426.24-155,142.12-62,122

Finding the Fourth Proportional to 112,426.24, 155,142.12 and 62,122

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Solution

The fourth proportional to 112,426.24, 155,142.12 and 62,122 is: 85,724.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,426.24 : 155,142.12 = 62,122 : x
  2. Step 2: Convert to fraction form
    112,426.24/155,142.12 = 62,122/x
  3. Step 3: Cross multiply
    112,426.24x = 155,142.12 × 62,122
  4. Step 4: Simplify right side
    112,426.24x = 9,637,738,778.64
  5. Step 5: Solve for x
    x = 9,637,738,778.64/112,426.24
  6. Step 6: Final answer
    x = 85,724.99

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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.