Home / 104,899.87-144,815.43-71,087.01

Finding the Fourth Proportional to 104,899.87, 144,815.43 and 71,087.01

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Solution

The fourth proportional to 104,899.87, 144,815.43 and 71,087.01 is: 98,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,899.87 : 144,815.43 = 71,087.01 : x
  2. Step 2: Convert to fraction form
    104,899.87/144,815.43 = 71,087.01/x
  3. Step 3: Cross multiply
    104,899.87x = 144,815.43 × 71,087.01
  4. Step 4: Simplify right side
    104,899.87x = 10,294,495,920.56
  5. Step 5: Solve for x
    x = 10,294,495,920.56/104,899.87
  6. Step 6: Final answer
    x = 98,136.40

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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.