Home / 185,078.52-255,408.34-103,406.79

Finding the Fourth Proportional to 185,078.52, 255,408.34 and 103,406.79

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Solution

The fourth proportional to 185,078.52, 255,408.34 and 103,406.79 is: 142,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,078.52 : 255,408.34 = 103,406.79 : x
  2. Step 2: Convert to fraction form
    185,078.52/255,408.34 = 103,406.79/x
  3. Step 3: Cross multiply
    185,078.52x = 255,408.34 × 103,406.79
  4. Step 4: Simplify right side
    185,078.52x = 26,410,956,578.63
  5. Step 5: Solve for x
    x = 26,410,956,578.63/185,078.52
  6. Step 6: Final answer
    x = 142,701.36

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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.