Home / 105,803.22-158,728.99-45,841.65

Finding the Fourth Proportional to 105,803.22, 158,728.99 and 45,841.65

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Solution

The fourth proportional to 105,803.22, 158,728.99 and 45,841.65 is: 68,772.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,803.22 : 158,728.99 = 45,841.65 : x
  2. Step 2: Convert to fraction form
    105,803.22/158,728.99 = 45,841.65/x
  3. Step 3: Cross multiply
    105,803.22x = 158,728.99 × 45,841.65
  4. Step 4: Simplify right side
    105,803.22x = 7,276,398,689.83
  5. Step 5: Solve for x
    x = 7,276,398,689.83/105,803.22
  6. Step 6: Final answer
    x = 68,772.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.