Home / 140,936.52-194,490.95-77,274.21

Finding the Fourth Proportional to 140,936.52, 194,490.95 and 77,274.21

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Solution

The fourth proportional to 140,936.52, 194,490.95 and 77,274.21 is: 106,637.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,936.52 : 194,490.95 = 77,274.21 : x
  2. Step 2: Convert to fraction form
    140,936.52/194,490.95 = 77,274.21/x
  3. Step 3: Cross multiply
    140,936.52x = 194,490.95 × 77,274.21
  4. Step 4: Simplify right side
    140,936.52x = 15,029,134,127.03
  5. Step 5: Solve for x
    x = 15,029,134,127.03/140,936.52
  6. Step 6: Final answer
    x = 106,637.61

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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.