Home / 141,900.36-195,831.51-78,244.08

Finding the Fourth Proportional to 141,900.36, 195,831.51 and 78,244.08

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Solution

The fourth proportional to 141,900.36, 195,831.51 and 78,244.08 is: 107,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,900.36 : 195,831.51 = 78,244.08 : x
  2. Step 2: Convert to fraction form
    141,900.36/195,831.51 = 78,244.08/x
  3. Step 3: Cross multiply
    141,900.36x = 195,831.51 × 78,244.08
  4. Step 4: Simplify right side
    141,900.36x = 15,322,656,334.96
  5. Step 5: Solve for x
    x = 15,322,656,334.96/141,900.36
  6. Step 6: Final answer
    x = 107,981.80

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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.