Home / 155,847.36-215,069.39-88,779.36

Finding the Fourth Proportional to 155,847.36, 215,069.39 and 88,779.36

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Solution

The fourth proportional to 155,847.36, 215,069.39 and 88,779.36 is: 122,515.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847.36 : 215,069.39 = 88,779.36 : x
  2. Step 2: Convert to fraction form
    155,847.36/215,069.39 = 88,779.36/x
  3. Step 3: Cross multiply
    155,847.36x = 215,069.39 × 88,779.36
  4. Step 4: Simplify right side
    155,847.36x = 19,093,722,799.79
  5. Step 5: Solve for x
    x = 19,093,722,799.79/155,847.36
  6. Step 6: Final answer
    x = 122,515.54

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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.