Home / 223,049.90-307,809.04-121,075.28

Finding the Fourth Proportional to 223,049.90, 307,809.04 and 121,075.28

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Solution

The fourth proportional to 223,049.90, 307,809.04 and 121,075.28 is: 167,083.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,049.90 : 307,809.04 = 121,075.28 : x
  2. Step 2: Convert to fraction form
    223,049.90/307,809.04 = 121,075.28/x
  3. Step 3: Cross multiply
    223,049.90x = 307,809.04 × 121,075.28
  4. Step 4: Simplify right side
    223,049.90x = 37,268,065,704.53
  5. Step 5: Solve for x
    x = 37,268,065,704.53/223,049.90
  6. Step 6: Final answer
    x = 167,083.98

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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.