Home / 100,888.08-139,223.52-63,183.12

Finding the Fourth Proportional to 100,888.08, 139,223.52 and 63,183.12

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Solution

The fourth proportional to 100,888.08, 139,223.52 and 63,183.12 is: 87,191.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,888.08 : 139,223.52 = 63,183.12 : x
  2. Step 2: Convert to fraction form
    100,888.08/139,223.52 = 63,183.12/x
  3. Step 3: Cross multiply
    100,888.08x = 139,223.52 × 63,183.12
  4. Step 4: Simplify right side
    100,888.08x = 8,796,576,370.98
  5. Step 5: Solve for x
    x = 8,796,576,370.98/100,888.08
  6. Step 6: Final answer
    x = 87,191.43

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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.