Home / 119,779.45-165,289.68-66,061.26

Finding the Fourth Proportional to 119,779.45, 165,289.68 and 66,061.26

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Solution

The fourth proportional to 119,779.45, 165,289.68 and 66,061.26 is: 91,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,779.45 : 165,289.68 = 66,061.26 : x
  2. Step 2: Convert to fraction form
    119,779.45/165,289.68 = 66,061.26/x
  3. Step 3: Cross multiply
    119,779.45x = 165,289.68 × 66,061.26
  4. Step 4: Simplify right side
    119,779.45x = 10,919,244,525.80
  5. Step 5: Solve for x
    x = 10,919,244,525.80/119,779.45
  6. Step 6: Final answer
    x = 91,161.25

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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.