Home / 94,615.20-141,922.80-90,007.20

Finding the Fourth Proportional to 94,615.20, 141,922.80 and 90,007.20

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Solution

The fourth proportional to 94,615.20, 141,922.80 and 90,007.20 is: 135,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,615.20 : 141,922.80 = 90,007.20 : x
  2. Step 2: Convert to fraction form
    94,615.20/141,922.80 = 90,007.20/x
  3. Step 3: Cross multiply
    94,615.20x = 141,922.80 × 90,007.20
  4. Step 4: Simplify right side
    94,615.20x = 12,774,073,844.16
  5. Step 5: Solve for x
    x = 12,774,073,844.16/94,615.20
  6. Step 6: Final answer
    x = 135,010.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.