Home / 180,820.07-249,531.27-100,245.51

Finding the Fourth Proportional to 180,820.07, 249,531.27 and 100,245.51

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Solution

The fourth proportional to 180,820.07, 249,531.27 and 100,245.51 is: 138,338.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,820.07 : 249,531.27 = 100,245.51 : x
  2. Step 2: Convert to fraction form
    180,820.07/249,531.27 = 100,245.51/x
  3. Step 3: Cross multiply
    180,820.07x = 249,531.27 × 100,245.51
  4. Step 4: Simplify right side
    180,820.07x = 25,014,389,422.10
  5. Step 5: Solve for x
    x = 25,014,389,422.10/180,820.07
  6. Step 6: Final answer
    x = 138,338.57

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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.