Home / 180,949.95-249,690.77-100,357.28

Finding the Fourth Proportional to 180,949.95, 249,690.77 and 100,357.28

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Solution

The fourth proportional to 180,949.95, 249,690.77 and 100,357.28 is: 138,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,949.95 : 249,690.77 = 100,357.28 : x
  2. Step 2: Convert to fraction form
    180,949.95/249,690.77 = 100,357.28/x
  3. Step 3: Cross multiply
    180,949.95x = 249,690.77 × 100,357.28
  4. Step 4: Simplify right side
    180,949.95x = 25,058,284,768.07
  5. Step 5: Solve for x
    x = 25,058,284,768.07/180,949.95
  6. Step 6: Final answer
    x = 138,481.86

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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.