Home / 132,779.72-183,245.06-81,118.92

Finding the Fourth Proportional to 132,779.72, 183,245.06 and 81,118.92

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Solution

The fourth proportional to 132,779.72, 183,245.06 and 81,118.92 is: 111,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,779.72 : 183,245.06 = 81,118.92 : x
  2. Step 2: Convert to fraction form
    132,779.72/183,245.06 = 81,118.92/x
  3. Step 3: Cross multiply
    132,779.72x = 183,245.06 × 81,118.92
  4. Step 4: Simplify right side
    132,779.72x = 14,864,641,362.54
  5. Step 5: Solve for x
    x = 14,864,641,362.54/132,779.72
  6. Step 6: Final answer
    x = 111,949.64

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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.