Home / 105,072.38-157,469.69-38,448.36

Finding the Fourth Proportional to 105,072.38, 157,469.69 and 38,448.36

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Solution

The fourth proportional to 105,072.38, 157,469.69 and 38,448.36 is: 57,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,072.38 : 157,469.69 = 38,448.36 : x
  2. Step 2: Convert to fraction form
    105,072.38/157,469.69 = 38,448.36/x
  3. Step 3: Cross multiply
    105,072.38x = 157,469.69 × 38,448.36
  4. Step 4: Simplify right side
    105,072.38x = 6,054,451,137.97
  5. Step 5: Solve for x
    x = 6,054,451,137.97/105,072.38
  6. Step 6: Final answer
    x = 57,621.72

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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.