Home / 185,002.45-255,303.69-100,119.58

Finding the Fourth Proportional to 185,002.45, 255,303.69 and 100,119.58

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Solution

The fourth proportional to 185,002.45, 255,303.69 and 100,119.58 is: 138,165.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,002.45 : 255,303.69 = 100,119.58 : x
  2. Step 2: Convert to fraction form
    185,002.45/255,303.69 = 100,119.58/x
  3. Step 3: Cross multiply
    185,002.45x = 255,303.69 × 100,119.58
  4. Step 4: Simplify right side
    185,002.45x = 25,560,898,215.25
  5. Step 5: Solve for x
    x = 25,560,898,215.25/185,002.45
  6. Step 6: Final answer
    x = 138,165.19

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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.