Home / 281,116.72-421,731.52-103,624.64

Finding the Fourth Proportional to 281,116.72, 421,731.52 and 103,624.64

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Solution

The fourth proportional to 281,116.72, 421,731.52 and 103,624.64 is: 155,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,116.72 : 421,731.52 = 103,624.64 : x
  2. Step 2: Convert to fraction form
    281,116.72/421,731.52 = 103,624.64/x
  3. Step 3: Cross multiply
    281,116.72x = 421,731.52 × 103,624.64
  4. Step 4: Simplify right side
    281,116.72x = 43,701,776,936.65
  5. Step 5: Solve for x
    x = 43,701,776,936.65/281,116.72
  6. Step 6: Final answer
    x = 155,457.76

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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.