Home / 175,818.72-242,647.20-100,378.56

Finding the Fourth Proportional to 175,818.72, 242,647.20 and 100,378.56

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Solution

The fourth proportional to 175,818.72, 242,647.20 and 100,378.56 is: 138,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,818.72 : 242,647.20 = 100,378.56 : x
  2. Step 2: Convert to fraction form
    175,818.72/242,647.20 = 100,378.56/x
  3. Step 3: Cross multiply
    175,818.72x = 242,647.20 × 100,378.56
  4. Step 4: Simplify right side
    175,818.72x = 24,356,576,524.03
  5. Step 5: Solve for x
    x = 24,356,576,524.03/175,818.72
  6. Step 6: Final answer
    x = 138,532.33

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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.