Home / 110,021.40-165,032.10-109,365.30

Finding the Fourth Proportional to 110,021.40, 165,032.10 and 109,365.30

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Solution

The fourth proportional to 110,021.40, 165,032.10 and 109,365.30 is: 164,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,021.40 : 165,032.10 = 109,365.30 : x
  2. Step 2: Convert to fraction form
    110,021.40/165,032.10 = 109,365.30/x
  3. Step 3: Cross multiply
    110,021.40x = 165,032.10 × 109,365.30
  4. Step 4: Simplify right side
    110,021.40x = 18,048,785,126.13
  5. Step 5: Solve for x
    x = 18,048,785,126.13/110,021.40
  6. Step 6: Final answer
    x = 164,047.95

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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.