Home / 104,975,999.90-157,463,999.85-85,844,123.90

Finding the Fourth Proportional to 104,975,999.90, 157,463,999.85 and 85,844,123.90

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Solution

The fourth proportional to 104,975,999.90, 157,463,999.85 and 85,844,123.90 is: 128,766,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,975,999.90 : 157,463,999.85 = 85,844,123.90 : x
  2. Step 2: Convert to fraction form
    104,975,999.90/157,463,999.85 = 85,844,123.90/x
  3. Step 3: Cross multiply
    104,975,999.90x = 157,463,999.85 × 85,844,123.90
  4. Step 4: Simplify right side
    104,975,999.90x = 13,517,359,112,912,982
  5. Step 5: Solve for x
    x = 13,517,359,112,912,982/104,975,999.90
  6. Step 6: Final answer
    x = 128,766,185.85

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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.