Home / 120,779.82-181,126.62-49,681.68

Finding the Fourth Proportional to 120,779.82, 181,126.62 and 49,681.68

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Solution

The fourth proportional to 120,779.82, 181,126.62 and 49,681.68 is: 74,504.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,779.82 : 181,126.62 = 49,681.68 : x
  2. Step 2: Convert to fraction form
    120,779.82/181,126.62 = 49,681.68/x
  3. Step 3: Cross multiply
    120,779.82x = 181,126.62 × 49,681.68
  4. Step 4: Simplify right side
    120,779.82x = 8,998,674,774.32
  5. Step 5: Solve for x
    x = 8,998,674,774.32/120,779.82
  6. Step 6: Final answer
    x = 74,504.79

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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.