Home / 105,935.80-158,864.74-42,739.02

Finding the Fourth Proportional to 105,935.80, 158,864.74 and 42,739.02

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Solution

The fourth proportional to 105,935.80, 158,864.74 and 42,739.02 is: 64,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,935.80 : 158,864.74 = 42,739.02 : x
  2. Step 2: Convert to fraction form
    105,935.80/158,864.74 = 42,739.02/x
  3. Step 3: Cross multiply
    105,935.80x = 158,864.74 × 42,739.02
  4. Step 4: Simplify right side
    105,935.80x = 6,789,722,986.91
  5. Step 5: Solve for x
    x = 6,789,722,986.91/105,935.80
  6. Step 6: Final answer
    x = 64,092.81

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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.