Home / 101,186.15-139,634.70-55,244.22

Finding the Fourth Proportional to 101,186.15, 139,634.70 and 55,244.22

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Solution

The fourth proportional to 101,186.15, 139,634.70 and 55,244.22 is: 76,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,186.15 : 139,634.70 = 55,244.22 : x
  2. Step 2: Convert to fraction form
    101,186.15/139,634.70 = 55,244.22/x
  3. Step 3: Cross multiply
    101,186.15x = 139,634.70 × 55,244.22
  4. Step 4: Simplify right side
    101,186.15x = 7,714,009,355.64
  5. Step 5: Solve for x
    x = 7,714,009,355.64/101,186.15
  6. Step 6: Final answer
    x = 76,235.83

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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.