Home / 109,391.14-164,021.01-42,751.86

Finding the Fourth Proportional to 109,391.14, 164,021.01 and 42,751.86

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Solution

The fourth proportional to 109,391.14, 164,021.01 and 42,751.86 is: 64,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,391.14 : 164,021.01 = 42,751.86 : x
  2. Step 2: Convert to fraction form
    109,391.14/164,021.01 = 42,751.86/x
  3. Step 3: Cross multiply
    109,391.14x = 164,021.01 × 42,751.86
  4. Step 4: Simplify right side
    109,391.14x = 7,012,203,256.58
  5. Step 5: Solve for x
    x = 7,012,203,256.58/109,391.14
  6. Step 6: Final answer
    x = 64,102.11

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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.