Home / 142,200.88-213,169.53-53,513.20

Finding the Fourth Proportional to 142,200.88, 213,169.53 and 53,513.20

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Solution

The fourth proportional to 142,200.88, 213,169.53 and 53,513.20 is: 80,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,200.88 : 213,169.53 = 53,513.20 : x
  2. Step 2: Convert to fraction form
    142,200.88/213,169.53 = 53,513.20/x
  3. Step 3: Cross multiply
    142,200.88x = 213,169.53 × 53,513.20
  4. Step 4: Simplify right side
    142,200.88x = 11,407,383,692.80
  5. Step 5: Solve for x
    x = 11,407,383,692.80/142,200.88
  6. Step 6: Final answer
    x = 80,220.20

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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.