Home / 180,745.20-249,428.40-100,177.92

Finding the Fourth Proportional to 180,745.20, 249,428.40 and 100,177.92

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Solution

The fourth proportional to 180,745.20, 249,428.40 and 100,177.92 is: 138,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,745.20 : 249,428.40 = 100,177.92 : x
  2. Step 2: Convert to fraction form
    180,745.20/249,428.40 = 100,177.92/x
  3. Step 3: Cross multiply
    180,745.20x = 249,428.40 × 100,177.92
  4. Step 4: Simplify right side
    180,745.20x = 24,987,218,300.93
  5. Step 5: Solve for x
    x = 24,987,218,300.93/180,745.20
  6. Step 6: Final answer
    x = 138,245.54

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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.