Home / 131,147.48-180,998.88-74,567.36

Finding the Fourth Proportional to 131,147.48, 180,998.88 and 74,567.36

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Solution

The fourth proportional to 131,147.48, 180,998.88 and 74,567.36 is: 102,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,147.48 : 180,998.88 = 74,567.36 : x
  2. Step 2: Convert to fraction form
    131,147.48/180,998.88 = 74,567.36/x
  3. Step 3: Cross multiply
    131,147.48x = 180,998.88 × 74,567.36
  4. Step 4: Simplify right side
    131,147.48x = 13,496,608,644.56
  5. Step 5: Solve for x
    x = 13,496,608,644.56/131,147.48
  6. Step 6: Final answer
    x = 102,911.69

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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.