Home / 281,295.06-421,867.62-78,880.02

Finding the Fourth Proportional to 281,295.06, 421,867.62 and 78,880.02

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Solution

The fourth proportional to 281,295.06, 421,867.62 and 78,880.02 is: 118,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,295.06 : 421,867.62 = 78,880.02 : x
  2. Step 2: Convert to fraction form
    281,295.06/421,867.62 = 78,880.02/x
  3. Step 3: Cross multiply
    281,295.06x = 421,867.62 × 78,880.02
  4. Step 4: Simplify right side
    281,295.06x = 33,276,926,302.95
  5. Step 5: Solve for x
    x = 33,276,926,302.95/281,295.06
  6. Step 6: Final answer
    x = 118,299.01

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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.