Home / 185,443.58-255,839.73-120,988.64

Finding the Fourth Proportional to 185,443.58, 255,839.73 and 120,988.64

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Solution

The fourth proportional to 185,443.58, 255,839.73 and 120,988.64 is: 166,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,443.58 : 255,839.73 = 120,988.64 : x
  2. Step 2: Convert to fraction form
    185,443.58/255,839.73 = 120,988.64/x
  3. Step 3: Cross multiply
    185,443.58x = 255,839.73 × 120,988.64
  4. Step 4: Simplify right side
    185,443.58x = 30,953,700,990.67
  5. Step 5: Solve for x
    x = 30,953,700,990.67/185,443.58
  6. Step 6: Final answer
    x = 166,917.08

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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.