Home / 104,280.26-143,830.32-68,457.20

Finding the Fourth Proportional to 104,280.26, 143,830.32 and 68,457.20

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Solution

The fourth proportional to 104,280.26, 143,830.32 and 68,457.20 is: 94,420.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,280.26 : 143,830.32 = 68,457.20 : x
  2. Step 2: Convert to fraction form
    104,280.26/143,830.32 = 68,457.20/x
  3. Step 3: Cross multiply
    104,280.26x = 143,830.32 × 68,457.20
  4. Step 4: Simplify right side
    104,280.26x = 9,846,220,006.44
  5. Step 5: Solve for x
    x = 9,846,220,006.44/104,280.26
  6. Step 6: Final answer
    x = 94,420.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.