Home / 181,002.58-249,779.74-100,428.37

Finding the Fourth Proportional to 181,002.58, 249,779.74 and 100,428.37

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Solution

The fourth proportional to 181,002.58, 249,779.74 and 100,428.37 is: 138,589.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,002.58 : 249,779.74 = 100,428.37 : x
  2. Step 2: Convert to fraction form
    181,002.58/249,779.74 = 100,428.37/x
  3. Step 3: Cross multiply
    181,002.58x = 249,779.74 × 100,428.37
  4. Step 4: Simplify right side
    181,002.58x = 25,084,972,147.22
  5. Step 5: Solve for x
    x = 25,084,972,147.22/181,002.58
  6. Step 6: Final answer
    x = 138,589.03

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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.