Home / 106,285.28-159,436.15-43,075.31

Finding the Fourth Proportional to 106,285.28, 159,436.15 and 43,075.31

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Solution

The fourth proportional to 106,285.28, 159,436.15 and 43,075.31 is: 64,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,285.28 : 159,436.15 = 43,075.31 : x
  2. Step 2: Convert to fraction form
    106,285.28/159,436.15 = 43,075.31/x
  3. Step 3: Cross multiply
    106,285.28x = 159,436.15 × 43,075.31
  4. Step 4: Simplify right side
    106,285.28x = 6,867,760,681.59
  5. Step 5: Solve for x
    x = 6,867,760,681.59/106,285.28
  6. Step 6: Final answer
    x = 64,616.29

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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.