Home / 105,075.26-145,004.34-57,329.60

Finding the Fourth Proportional to 105,075.26, 145,004.34 and 57,329.60

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Solution

The fourth proportional to 105,075.26, 145,004.34 and 57,329.60 is: 79,115.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,075.26 : 145,004.34 = 57,329.60 : x
  2. Step 2: Convert to fraction form
    105,075.26/145,004.34 = 57,329.60/x
  3. Step 3: Cross multiply
    105,075.26x = 145,004.34 × 57,329.60
  4. Step 4: Simplify right side
    105,075.26x = 8,313,040,810.46
  5. Step 5: Solve for x
    x = 8,313,040,810.46/105,075.26
  6. Step 6: Final answer
    x = 79,115.11

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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.