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Finding the Fourth Proportional to 180,453.26, 249,022.39 and 99,879.01

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Solution

The fourth proportional to 180,453.26, 249,022.39 and 99,879.01 is: 137,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,453.26 : 249,022.39 = 99,879.01 : x
  2. Step 2: Convert to fraction form
    180,453.26/249,022.39 = 99,879.01/x
  3. Step 3: Cross multiply
    180,453.26x = 249,022.39 × 99,879.01
  4. Step 4: Simplify right side
    180,453.26x = 24,872,109,781.03
  5. Step 5: Solve for x
    x = 24,872,109,781.03/180,453.26
  6. Step 6: Final answer
    x = 137,831.31

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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.