Home / 109,923.40-164,557.05-103,435.30

Finding the Fourth Proportional to 109,923.40, 164,557.05 and 103,435.30

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Solution

The fourth proportional to 109,923.40, 164,557.05 and 103,435.30 is: 154,844.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,923.40 : 164,557.05 = 103,435.30 : x
  2. Step 2: Convert to fraction form
    109,923.40/164,557.05 = 103,435.30/x
  3. Step 3: Cross multiply
    109,923.40x = 164,557.05 × 103,435.30
  4. Step 4: Simplify right side
    109,923.40x = 17,021,007,833.87
  5. Step 5: Solve for x
    x = 17,021,007,833.87/109,923.40
  6. Step 6: Final answer
    x = 154,844.26

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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.