Home / 105,318.63-158,017.41-54,686.07

Finding the Fourth Proportional to 105,318.63, 158,017.41 and 54,686.07

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Solution

The fourth proportional to 105,318.63, 158,017.41 and 54,686.07 is: 82,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,318.63 : 158,017.41 = 54,686.07 : x
  2. Step 2: Convert to fraction form
    105,318.63/158,017.41 = 54,686.07/x
  3. Step 3: Cross multiply
    105,318.63x = 158,017.41 × 54,686.07
  4. Step 4: Simplify right side
    105,318.63x = 8,641,351,144.48
  5. Step 5: Solve for x
    x = 8,641,351,144.48/105,318.63
  6. Step 6: Final answer
    x = 82,049.60

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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.