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Finding the Fourth Proportional to 143,798.28, 215,674.05 and 67,896.68

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Solution

The fourth proportional to 143,798.28, 215,674.05 and 67,896.68 is: 101,833.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,798.28 : 215,674.05 = 67,896.68 : x
  2. Step 2: Convert to fraction form
    143,798.28/215,674.05 = 67,896.68/x
  3. Step 3: Cross multiply
    143,798.28x = 215,674.05 × 67,896.68
  4. Step 4: Simplify right side
    143,798.28x = 14,643,550,878.78
  5. Step 5: Solve for x
    x = 14,643,550,878.78/143,798.28
  6. Step 6: Final answer
    x = 101,833.98

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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.