Home / 106,729.63-147,278.05-58,982.86

Finding the Fourth Proportional to 106,729.63, 147,278.05 and 58,982.86

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Solution

The fourth proportional to 106,729.63, 147,278.05 and 58,982.86 is: 81,391.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,729.63 : 147,278.05 = 58,982.86 : x
  2. Step 2: Convert to fraction form
    106,729.63/147,278.05 = 58,982.86/x
  3. Step 3: Cross multiply
    106,729.63x = 147,278.05 × 58,982.86
  4. Step 4: Simplify right side
    106,729.63x = 8,686,880,640.86
  5. Step 5: Solve for x
    x = 8,686,880,640.86/106,729.63
  6. Step 6: Final answer
    x = 81,391.46

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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.