Home / 142,220.16-213,464.16-72,149.76

Finding the Fourth Proportional to 142,220.16, 213,464.16 and 72,149.76

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Solution

The fourth proportional to 142,220.16, 213,464.16 and 72,149.76 is: 108,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,220.16 : 213,464.16 = 72,149.76 : x
  2. Step 2: Convert to fraction form
    142,220.16/213,464.16 = 72,149.76/x
  3. Step 3: Cross multiply
    142,220.16x = 213,464.16 × 72,149.76
  4. Step 4: Simplify right side
    142,220.16x = 15,401,387,912.60
  5. Step 5: Solve for x
    x = 15,401,387,912.60/142,220.16
  6. Step 6: Final answer
    x = 108,292.58

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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.