Home / 143,511.02-215,266.71-68,613.56

Finding the Fourth Proportional to 143,511.02, 215,266.71 and 68,613.56

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Solution

The fourth proportional to 143,511.02, 215,266.71 and 68,613.56 is: 102,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,511.02 : 215,266.71 = 68,613.56 : x
  2. Step 2: Convert to fraction form
    143,511.02/215,266.71 = 68,613.56/x
  3. Step 3: Cross multiply
    143,511.02x = 215,266.71 × 68,613.56
  4. Step 4: Simplify right side
    143,511.02x = 14,770,215,322.59
  5. Step 5: Solve for x
    x = 14,770,215,322.59/143,511.02
  6. Step 6: Final answer
    x = 102,920.43

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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.