Home / 105,003,013.20-157,504,519.80-68,723,307.60

Finding the Fourth Proportional to 105,003,013.20, 157,504,519.80 and 68,723,307.60

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Solution

The fourth proportional to 105,003,013.20, 157,504,519.80 and 68,723,307.60 is: 103,084,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,003,013.20 : 157,504,519.80 = 68,723,307.60 : x
  2. Step 2: Convert to fraction form
    105,003,013.20/157,504,519.80 = 68,723,307.60/x
  3. Step 3: Cross multiply
    105,003,013.20x = 157,504,519.80 × 68,723,307.60
  4. Step 4: Simplify right side
    105,003,013.20x = 10,824,231,562,605,690
  5. Step 5: Solve for x
    x = 10,824,231,562,605,690/105,003,013.20
  6. Step 6: Final answer
    x = 103,084,961.40

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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.