Home / 140,048.56-193,269.64-76,388.63

Finding the Fourth Proportional to 140,048.56, 193,269.64 and 76,388.63

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Solution

The fourth proportional to 140,048.56, 193,269.64 and 76,388.63 is: 105,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,048.56 : 193,269.64 = 76,388.63 : x
  2. Step 2: Convert to fraction form
    140,048.56/193,269.64 = 76,388.63/x
  3. Step 3: Cross multiply
    140,048.56x = 193,269.64 × 76,388.63
  4. Step 4: Simplify right side
    140,048.56x = 14,763,603,121.42
  5. Step 5: Solve for x
    x = 14,763,603,121.42/140,048.56
  6. Step 6: Final answer
    x = 105,417.74

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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.