Home / 105,708.18-158,585.60-30,834.19

Finding the Fourth Proportional to 105,708.18, 158,585.60 and 30,834.19

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Solution

The fourth proportional to 105,708.18, 158,585.60 and 30,834.19 is: 46,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,708.18 : 158,585.60 = 30,834.19 : x
  2. Step 2: Convert to fraction form
    105,708.18/158,585.60 = 30,834.19/x
  3. Step 3: Cross multiply
    105,708.18x = 158,585.60 × 30,834.19
  4. Step 4: Simplify right side
    105,708.18x = 4,889,857,888.43
  5. Step 5: Solve for x
    x = 4,889,857,888.43/105,708.18
  6. Step 6: Final answer
    x = 46,258.08

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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.