Home / 180,945.43-249,706.20-100,378.24

Finding the Fourth Proportional to 180,945.43, 249,706.20 and 100,378.24

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Solution

The fourth proportional to 180,945.43, 249,706.20 and 100,378.24 is: 138,522.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,945.43 : 249,706.20 = 100,378.24 : x
  2. Step 2: Convert to fraction form
    180,945.43/249,706.20 = 100,378.24/x
  3. Step 3: Cross multiply
    180,945.43x = 249,706.20 × 100,378.24
  4. Step 4: Simplify right side
    180,945.43x = 25,065,068,873.09
  5. Step 5: Solve for x
    x = 25,065,068,873.09/180,945.43
  6. Step 6: Final answer
    x = 138,522.81

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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.