Home / 106,326,129.80-159,489,194.70-90,453,758.60

Finding the Fourth Proportional to 106,326,129.80, 159,489,194.70 and 90,453,758.60

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Solution

The fourth proportional to 106,326,129.80, 159,489,194.70 and 90,453,758.60 is: 135,680,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,326,129.80 : 159,489,194.70 = 90,453,758.60 : x
  2. Step 2: Convert to fraction form
    106,326,129.80/159,489,194.70 = 90,453,758.60/x
  3. Step 3: Cross multiply
    106,326,129.80x = 159,489,194.70 × 90,453,758.60
  4. Step 4: Simplify right side
    106,326,129.80x = 14,426,397,116,702,198
  5. Step 5: Solve for x
    x = 14,426,397,116,702,198/106,326,129.80
  6. Step 6: Final answer
    x = 135,680,637.90

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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.