Home / 180,879.05-249,613.74-100,314.02

Finding the Fourth Proportional to 180,879.05, 249,613.74 and 100,314.02

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Solution

The fourth proportional to 180,879.05, 249,613.74 and 100,314.02 is: 138,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,879.05 : 249,613.74 = 100,314.02 : x
  2. Step 2: Convert to fraction form
    180,879.05/249,613.74 = 100,314.02/x
  3. Step 3: Cross multiply
    180,879.05x = 249,613.74 × 100,314.02
  4. Step 4: Simplify right side
    180,879.05x = 25,039,756,458.57
  5. Step 5: Solve for x
    x = 25,039,756,458.57/180,879.05
  6. Step 6: Final answer
    x = 138,433.71

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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.