Home / 105,284.56-157,936.98-42,089.60

Finding the Fourth Proportional to 105,284.56, 157,936.98 and 42,089.60

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Solution

The fourth proportional to 105,284.56, 157,936.98 and 42,089.60 is: 63,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,284.56 : 157,936.98 = 42,089.60 : x
  2. Step 2: Convert to fraction form
    105,284.56/157,936.98 = 42,089.60/x
  3. Step 3: Cross multiply
    105,284.56x = 157,936.98 × 42,089.60
  4. Step 4: Simplify right side
    105,284.56x = 6,647,504,313.41
  5. Step 5: Solve for x
    x = 6,647,504,313.41/105,284.56
  6. Step 6: Final answer
    x = 63,138.45

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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.