Home / 158,090.24-218,235.69-100,806.34

Finding the Fourth Proportional to 158,090.24, 218,235.69 and 100,806.34

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Solution

The fourth proportional to 158,090.24, 218,235.69 and 100,806.34 is: 139,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,090.24 : 218,235.69 = 100,806.34 : x
  2. Step 2: Convert to fraction form
    158,090.24/218,235.69 = 100,806.34/x
  3. Step 3: Cross multiply
    158,090.24x = 218,235.69 × 100,806.34
  4. Step 4: Simplify right side
    158,090.24x = 21,999,540,620.69
  5. Step 5: Solve for x
    x = 21,999,540,620.69/158,090.24
  6. Step 6: Final answer
    x = 139,158.12

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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.