Home / 140,631.17-194,069.86-76,968.82

Finding the Fourth Proportional to 140,631.17, 194,069.86 and 76,968.82

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Solution

The fourth proportional to 140,631.17, 194,069.86 and 76,968.82 is: 106,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,631.17 : 194,069.86 = 76,968.82 : x
  2. Step 2: Convert to fraction form
    140,631.17/194,069.86 = 76,968.82/x
  3. Step 3: Cross multiply
    140,631.17x = 194,069.86 × 76,968.82
  4. Step 4: Simplify right side
    140,631.17x = 14,937,328,121.77
  5. Step 5: Solve for x
    x = 14,937,328,121.77/140,631.17
  6. Step 6: Final answer
    x = 106,216.34

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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.