Home / 152,621.85-210,375.42-120,304.07

Finding the Fourth Proportional to 152,621.85, 210,375.42 and 120,304.07

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Solution

The fourth proportional to 152,621.85, 210,375.42 and 120,304.07 is: 165,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,621.85 : 210,375.42 = 120,304.07 : x
  2. Step 2: Convert to fraction form
    152,621.85/210,375.42 = 120,304.07/x
  3. Step 3: Cross multiply
    152,621.85x = 210,375.42 × 120,304.07
  4. Step 4: Simplify right side
    152,621.85x = 25,309,017,750.94
  5. Step 5: Solve for x
    x = 25,309,017,750.94/152,621.85
  6. Step 6: Final answer
    x = 165,828.27

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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.