Home / 180,947.70-249,708.96-100,380.33

Finding the Fourth Proportional to 180,947.70, 249,708.96 and 100,380.33

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Solution

The fourth proportional to 180,947.70, 249,708.96 and 100,380.33 is: 138,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,947.70 : 249,708.96 = 100,380.33 : x
  2. Step 2: Convert to fraction form
    180,947.70/249,708.96 = 100,380.33/x
  3. Step 3: Cross multiply
    180,947.70x = 249,708.96 × 100,380.33
  4. Step 4: Simplify right side
    180,947.70x = 25,065,867,808.76
  5. Step 5: Solve for x
    x = 25,065,867,808.76/180,947.70
  6. Step 6: Final answer
    x = 138,525.48

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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.