Home / 131,174.20-180,924.51-85,779.37

Finding the Fourth Proportional to 131,174.20, 180,924.51 and 85,779.37

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Solution

The fourth proportional to 131,174.20, 180,924.51 and 85,779.37 is: 118,312.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,174.20 : 180,924.51 = 85,779.37 : x
  2. Step 2: Convert to fraction form
    131,174.20/180,924.51 = 85,779.37/x
  3. Step 3: Cross multiply
    131,174.20x = 180,924.51 × 85,779.37
  4. Step 4: Simplify right side
    131,174.20x = 15,519,590,485.36
  5. Step 5: Solve for x
    x = 15,519,590,485.36/131,174.20
  6. Step 6: Final answer
    x = 118,312.83

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1.5x scale

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.