Home / 155,558.01-214,658.92-87,571.47

Finding the Fourth Proportional to 155,558.01, 214,658.92 and 87,571.47

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Solution

The fourth proportional to 155,558.01, 214,658.92 and 87,571.47 is: 120,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,558.01 : 214,658.92 = 87,571.47 : x
  2. Step 2: Convert to fraction form
    155,558.01/214,658.92 = 87,571.47/x
  3. Step 3: Cross multiply
    155,558.01x = 214,658.92 × 87,571.47
  4. Step 4: Simplify right side
    155,558.01x = 18,797,997,173.01
  5. Step 5: Solve for x
    x = 18,797,997,173.01/155,558.01
  6. Step 6: Final answer
    x = 120,842.36

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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.