Home / 106,326,145.80-159,489,218.70-90,453,774.60

Finding the Fourth Proportional to 106,326,145.80, 159,489,218.70 and 90,453,774.60

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Solution

The fourth proportional to 106,326,145.80, 159,489,218.70 and 90,453,774.60 is: 135,680,661.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,326,145.80 : 159,489,218.70 = 90,453,774.60 : x
  2. Step 2: Convert to fraction form
    106,326,145.80/159,489,218.70 = 90,453,774.60/x
  3. Step 3: Cross multiply
    106,326,145.80x = 159,489,218.70 × 90,453,774.60
  4. Step 4: Simplify right side
    106,326,145.80x = 14,426,401,839,419,902
  5. Step 5: Solve for x
    x = 14,426,401,839,419,902/106,326,145.80
  6. Step 6: Final answer
    x = 135,680,661.90

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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.