Home / 156,172.78-215,518.55-84,552.85

Finding the Fourth Proportional to 156,172.78, 215,518.55 and 84,552.85

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Solution

The fourth proportional to 156,172.78, 215,518.55 and 84,552.85 is: 116,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,172.78 : 215,518.55 = 84,552.85 : x
  2. Step 2: Convert to fraction form
    156,172.78/215,518.55 = 84,552.85/x
  3. Step 3: Cross multiply
    156,172.78x = 215,518.55 × 84,552.85
  4. Step 4: Simplify right side
    156,172.78x = 18,222,707,630.37
  5. Step 5: Solve for x
    x = 18,222,707,630.37/156,172.78
  6. Step 6: Final answer
    x = 116,682.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.