Home / 144,831.80-199,879.65-80,307.45

Finding the Fourth Proportional to 144,831.80, 199,879.65 and 80,307.45

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Solution

The fourth proportional to 144,831.80, 199,879.65 and 80,307.45 is: 110,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,831.80 : 199,879.65 = 80,307.45 : x
  2. Step 2: Convert to fraction form
    144,831.80/199,879.65 = 80,307.45/x
  3. Step 3: Cross multiply
    144,831.80x = 199,879.65 × 80,307.45
  4. Step 4: Simplify right side
    144,831.80x = 16,051,824,998.39
  5. Step 5: Solve for x
    x = 16,051,824,998.39/144,831.80
  6. Step 6: Final answer
    x = 110,830.81

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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.