Home / 104,640.12-142,471.46-104,307.96

Finding the Fourth Proportional to 104,640.12, 142,471.46 and 104,307.96

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Solution

The fourth proportional to 104,640.12, 142,471.46 and 104,307.96 is: 142,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,640.12 : 142,471.46 = 104,307.96 : x
  2. Step 2: Convert to fraction form
    104,640.12/142,471.46 = 104,307.96/x
  3. Step 3: Cross multiply
    104,640.12x = 142,471.46 × 104,307.96
  4. Step 4: Simplify right side
    104,640.12x = 14,860,907,350.82
  5. Step 5: Solve for x
    x = 14,860,907,350.82/104,640.12
  6. Step 6: Final answer
    x = 142,019.21

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.