Home / 104,975.40-157,511.70-55,111.80

Finding the Fourth Proportional to 104,975.40, 157,511.70 and 55,111.80

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Solution

The fourth proportional to 104,975.40, 157,511.70 and 55,111.80 is: 82,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,975.40 : 157,511.70 = 55,111.80 : x
  2. Step 2: Convert to fraction form
    104,975.40/157,511.70 = 55,111.80/x
  3. Step 3: Cross multiply
    104,975.40x = 157,511.70 × 55,111.80
  4. Step 4: Simplify right side
    104,975.40x = 8,680,753,308.06
  5. Step 5: Solve for x
    x = 8,680,753,308.06/104,975.40
  6. Step 6: Final answer
    x = 82,693.21

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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.