Home / 180,971.20-249,755.46-100,397.33

Finding the Fourth Proportional to 180,971.20, 249,755.46 and 100,397.33

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Solution

The fourth proportional to 180,971.20, 249,755.46 and 100,397.33 is: 138,556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,971.20 : 249,755.46 = 100,397.33 : x
  2. Step 2: Convert to fraction form
    180,971.20/249,755.46 = 100,397.33/x
  3. Step 3: Cross multiply
    180,971.20x = 249,755.46 × 100,397.33
  4. Step 4: Simplify right side
    180,971.20x = 25,074,780,088.14
  5. Step 5: Solve for x
    x = 25,074,780,088.14/180,971.20
  6. Step 6: Final answer
    x = 138,556.75

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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.