Home / 105,431.16-158,147.04-38,842.44

Finding the Fourth Proportional to 105,431.16, 158,147.04 and 38,842.44

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Solution

The fourth proportional to 105,431.16, 158,147.04 and 38,842.44 is: 58,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,431.16 : 158,147.04 = 38,842.44 : x
  2. Step 2: Convert to fraction form
    105,431.16/158,147.04 = 38,842.44/x
  3. Step 3: Cross multiply
    105,431.16x = 158,147.04 × 38,842.44
  4. Step 4: Simplify right side
    105,431.16x = 6,142,816,912.38
  5. Step 5: Solve for x
    x = 6,142,816,912.38/105,431.16
  6. Step 6: Final answer
    x = 58,263.77

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1.5x scale

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.