Home / 100,216.24-138,302.04-55,504.24

Finding the Fourth Proportional to 100,216.24, 138,302.04 and 55,504.24

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Solution

The fourth proportional to 100,216.24, 138,302.04 and 55,504.24 is: 76,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,216.24 : 138,302.04 = 55,504.24 : x
  2. Step 2: Convert to fraction form
    100,216.24/138,302.04 = 55,504.24/x
  3. Step 3: Cross multiply
    100,216.24x = 138,302.04 × 55,504.24
  4. Step 4: Simplify right side
    100,216.24x = 7,676,349,620.65
  5. Step 5: Solve for x
    x = 7,676,349,620.65/100,216.24
  6. Step 6: Final answer
    x = 76,597.86

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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.