Home / 143,943.04-215,940.48-68,999.68

Finding the Fourth Proportional to 143,943.04, 215,940.48 and 68,999.68

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Solution

The fourth proportional to 143,943.04, 215,940.48 and 68,999.68 is: 103,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,943.04 : 215,940.48 = 68,999.68 : x
  2. Step 2: Convert to fraction form
    143,943.04/215,940.48 = 68,999.68/x
  3. Step 3: Cross multiply
    143,943.04x = 215,940.48 × 68,999.68
  4. Step 4: Simplify right side
    143,943.04x = 14,899,824,019.05
  5. Step 5: Solve for x
    x = 14,899,824,019.05/143,943.04
  6. Step 6: Final answer
    x = 103,511.94

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1.5x scale

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.