Home / 236,779.98-355,325.66-87,021.55

Finding the Fourth Proportional to 236,779.98, 355,325.66 and 87,021.55

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Solution

The fourth proportional to 236,779.98, 355,325.66 and 87,021.55 is: 130,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,779.98 : 355,325.66 = 87,021.55 : x
  2. Step 2: Convert to fraction form
    236,779.98/355,325.66 = 87,021.55/x
  3. Step 3: Cross multiply
    236,779.98x = 355,325.66 × 87,021.55
  4. Step 4: Simplify right side
    236,779.98x = 30,920,989,687.97
  5. Step 5: Solve for x
    x = 30,920,989,687.97/236,779.98
  6. Step 6: Final answer
    x = 130,589.54

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1.5x scale

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.