Home / 101,074.16-139,485.70-55,136.32

Finding the Fourth Proportional to 101,074.16, 139,485.70 and 55,136.32

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Solution

The fourth proportional to 101,074.16, 139,485.70 and 55,136.32 is: 76,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,074.16 : 139,485.70 = 55,136.32 : x
  2. Step 2: Convert to fraction form
    101,074.16/139,485.70 = 55,136.32/x
  3. Step 3: Cross multiply
    101,074.16x = 139,485.70 × 55,136.32
  4. Step 4: Simplify right side
    101,074.16x = 7,690,728,190.62
  5. Step 5: Solve for x
    x = 7,690,728,190.62/101,074.16
  6. Step 6: Final answer
    x = 76,089.95

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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.