Home / 281,002.17-421,724.67-103,633.72

Finding the Fourth Proportional to 281,002.17, 421,724.67 and 103,633.72

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Solution

The fourth proportional to 281,002.17, 421,724.67 and 103,633.72 is: 155,532.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,002.17 : 421,724.67 = 103,633.72 : x
  2. Step 2: Convert to fraction form
    281,002.17/421,724.67 = 103,633.72/x
  3. Step 3: Cross multiply
    281,002.17x = 421,724.67 × 103,633.72
  4. Step 4: Simplify right side
    281,002.17x = 43,704,896,367.87
  5. Step 5: Solve for x
    x = 43,704,896,367.87/281,002.17
  6. Step 6: Final answer
    x = 155,532.24

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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.