Home / 134,143.98-185,103.78-107,276.70

Finding the Fourth Proportional to 134,143.98, 185,103.78 and 107,276.70

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Solution

The fourth proportional to 134,143.98, 185,103.78 and 107,276.70 is: 148,029.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,143.98 : 185,103.78 = 107,276.70 : x
  2. Step 2: Convert to fraction form
    134,143.98/185,103.78 = 107,276.70/x
  3. Step 3: Cross multiply
    134,143.98x = 185,103.78 × 107,276.70
  4. Step 4: Simplify right side
    134,143.98x = 19,857,322,675.93
  5. Step 5: Solve for x
    x = 19,857,322,675.93/134,143.98
  6. Step 6: Final answer
    x = 148,029.92

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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.