Home / 116,694.72-174,779.40-81,790.20

Finding the Fourth Proportional to 116,694.72, 174,779.40 and 81,790.20

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Solution

The fourth proportional to 116,694.72, 174,779.40 and 81,790.20 is: 122,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,694.72 : 174,779.40 = 81,790.20 : x
  2. Step 2: Convert to fraction form
    116,694.72/174,779.40 = 81,790.20/x
  3. Step 3: Cross multiply
    116,694.72x = 174,779.40 × 81,790.20
  4. Step 4: Simplify right side
    116,694.72x = 14,295,242,081.88
  5. Step 5: Solve for x
    x = 14,295,242,081.88/116,694.72
  6. Step 6: Final answer
    x = 122,501.19

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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.