Home / 105,754.41-145,939.73-60,431.87

Finding the Fourth Proportional to 105,754.41, 145,939.73 and 60,431.87

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Solution

The fourth proportional to 105,754.41, 145,939.73 and 60,431.87 is: 83,395.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,754.41 : 145,939.73 = 60,431.87 : x
  2. Step 2: Convert to fraction form
    105,754.41/145,939.73 = 60,431.87/x
  3. Step 3: Cross multiply
    105,754.41x = 145,939.73 × 60,431.87
  4. Step 4: Simplify right side
    105,754.41x = 8,819,410,853.89
  5. Step 5: Solve for x
    x = 8,819,410,853.89/105,754.41
  6. Step 6: Final answer
    x = 83,395.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.