Home / 141,360.78-195,079.41-76,830.06

Finding the Fourth Proportional to 141,360.78, 195,079.41 and 76,830.06

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Solution

The fourth proportional to 141,360.78, 195,079.41 and 76,830.06 is: 106,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,360.78 : 195,079.41 = 76,830.06 : x
  2. Step 2: Convert to fraction form
    141,360.78/195,079.41 = 76,830.06/x
  3. Step 3: Cross multiply
    141,360.78x = 195,079.41 × 76,830.06
  4. Step 4: Simplify right side
    141,360.78x = 14,987,962,775.06
  5. Step 5: Solve for x
    x = 14,987,962,775.06/141,360.78
  6. Step 6: Final answer
    x = 106,026.32

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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.