Home / 106,533.18-146,971.08-74,722.86

Finding the Fourth Proportional to 106,533.18, 146,971.08 and 74,722.86

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Solution

The fourth proportional to 106,533.18, 146,971.08 and 74,722.86 is: 103,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,533.18 : 146,971.08 = 74,722.86 : x
  2. Step 2: Convert to fraction form
    106,533.18/146,971.08 = 74,722.86/x
  3. Step 3: Cross multiply
    106,533.18x = 146,971.08 × 74,722.86
  4. Step 4: Simplify right side
    106,533.18x = 10,982,099,434.89
  5. Step 5: Solve for x
    x = 10,982,099,434.89/106,533.18
  6. Step 6: Final answer
    x = 103,086.19

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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.