Home / 180,745.06-249,421.39-100,173.95

Finding the Fourth Proportional to 180,745.06, 249,421.39 and 100,173.95

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Solution

The fourth proportional to 180,745.06, 249,421.39 and 100,173.95 is: 138,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,745.06 : 249,421.39 = 100,173.95 : x
  2. Step 2: Convert to fraction form
    180,745.06/249,421.39 = 100,173.95/x
  3. Step 3: Cross multiply
    180,745.06x = 249,421.39 × 100,173.95
  4. Step 4: Simplify right side
    180,745.06x = 24,985,526,223.91
  5. Step 5: Solve for x
    x = 24,985,526,223.91/180,745.06
  6. Step 6: Final answer
    x = 138,236.29

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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.