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Finding the Fourth Proportional to 143,370.90, 215,100.10 and 73,299.42

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Solution

The fourth proportional to 143,370.90, 215,100.10 and 73,299.42 is: 109,971.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,370.90 : 215,100.10 = 73,299.42 : x
  2. Step 2: Convert to fraction form
    143,370.90/215,100.10 = 73,299.42/x
  3. Step 3: Cross multiply
    143,370.90x = 215,100.10 × 73,299.42
  4. Step 4: Simplify right side
    143,370.90x = 15,766,712,571.94
  5. Step 5: Solve for x
    x = 15,766,712,571.94/143,370.90
  6. Step 6: Final answer
    x = 109,971.50

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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.