Home / 94,146.90-141,733.28-81,290.58

Finding the Fourth Proportional to 94,146.90, 141,733.28 and 81,290.58

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Solution

The fourth proportional to 94,146.90, 141,733.28 and 81,290.58 is: 122,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,146.90 : 141,733.28 = 81,290.58 : x
  2. Step 2: Convert to fraction form
    94,146.90/141,733.28 = 81,290.58/x
  3. Step 3: Cross multiply
    94,146.90x = 141,733.28 × 81,290.58
  4. Step 4: Simplify right side
    94,146.90x = 11,521,580,130.05
  5. Step 5: Solve for x
    x = 11,521,580,130.05/94,146.90
  6. Step 6: Final answer
    x = 122,378.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.