Home / 180,968.18-249,736.37-100,395.70

Finding the Fourth Proportional to 180,968.18, 249,736.37 and 100,395.70

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Solution

The fourth proportional to 180,968.18, 249,736.37 and 100,395.70 is: 138,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,968.18 : 249,736.37 = 100,395.70 : x
  2. Step 2: Convert to fraction form
    180,968.18/249,736.37 = 100,395.70/x
  3. Step 3: Cross multiply
    180,968.18x = 249,736.37 × 100,395.70
  4. Step 4: Simplify right side
    180,968.18x = 25,072,456,555.29
  5. Step 5: Solve for x
    x = 25,072,456,555.29/180,968.18
  6. Step 6: Final answer
    x = 138,546.22

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1.5x scale

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.