Home / 105,868.54-158,701.73-39,290.86

Finding the Fourth Proportional to 105,868.54, 158,701.73 and 39,290.86

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Solution

The fourth proportional to 105,868.54, 158,701.73 and 39,290.86 is: 58,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,868.54 : 158,701.73 = 39,290.86 : x
  2. Step 2: Convert to fraction form
    105,868.54/158,701.73 = 39,290.86/x
  3. Step 3: Cross multiply
    105,868.54x = 158,701.73 × 39,290.86
  4. Step 4: Simplify right side
    105,868.54x = 6,235,527,455.19
  5. Step 5: Solve for x
    x = 6,235,527,455.19/105,868.54
  6. Step 6: Final answer
    x = 58,898.78

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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.