Home / 74,075.90-111,176.07-69,405.04

Finding the Fourth Proportional to 74,075.90, 111,176.07 and 69,405.04

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Solution

The fourth proportional to 74,075.90, 111,176.07 and 69,405.04 is: 104,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,075.90 : 111,176.07 = 69,405.04 : x
  2. Step 2: Convert to fraction form
    74,075.90/111,176.07 = 69,405.04/x
  3. Step 3: Cross multiply
    74,075.90x = 111,176.07 × 69,405.04
  4. Step 4: Simplify right side
    74,075.90x = 7,716,179,585.39
  5. Step 5: Solve for x
    x = 7,716,179,585.39/74,075.90
  6. Step 6: Final answer
    x = 104,165.86

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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.