Home / 106,641.36-147,076.02-79,847.64

Finding the Fourth Proportional to 106,641.36, 147,076.02 and 79,847.64

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Solution

The fourth proportional to 106,641.36, 147,076.02 and 79,847.64 is: 110,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,641.36 : 147,076.02 = 79,847.64 : x
  2. Step 2: Convert to fraction form
    106,641.36/147,076.02 = 79,847.64/x
  3. Step 3: Cross multiply
    106,641.36x = 147,076.02 × 79,847.64
  4. Step 4: Simplify right side
    106,641.36x = 11,743,673,097.59
  5. Step 5: Solve for x
    x = 11,743,673,097.59/106,641.36
  6. Step 6: Final answer
    x = 110,123.06

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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.