Home / 105,116.19-157,580.52-38,540.81

Finding the Fourth Proportional to 105,116.19, 157,580.52 and 38,540.81

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Solution

The fourth proportional to 105,116.19, 157,580.52 and 38,540.81 is: 57,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,116.19 : 157,580.52 = 38,540.81 : x
  2. Step 2: Convert to fraction form
    105,116.19/157,580.52 = 38,540.81/x
  3. Step 3: Cross multiply
    105,116.19x = 157,580.52 × 38,540.81
  4. Step 4: Simplify right side
    105,116.19x = 6,073,280,093.12
  5. Step 5: Solve for x
    x = 6,073,280,093.12/105,116.19
  6. Step 6: Final answer
    x = 57,776.83

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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.