Home / 105,723.90-158,570.34-30,823.92

Finding the Fourth Proportional to 105,723.90, 158,570.34 and 30,823.92

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Solution

The fourth proportional to 105,723.90, 158,570.34 and 30,823.92 is: 46,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,723.90 : 158,570.34 = 30,823.92 : x
  2. Step 2: Convert to fraction form
    105,723.90/158,570.34 = 30,823.92/x
  3. Step 3: Cross multiply
    105,723.90x = 158,570.34 × 30,823.92
  4. Step 4: Simplify right side
    105,723.90x = 4,887,759,474.53
  5. Step 5: Solve for x
    x = 4,887,759,474.53/105,723.90
  6. Step 6: Final answer
    x = 46,231.36

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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.