Home / 197,478.78-272,519.48-106,834.38

Finding the Fourth Proportional to 197,478.78, 272,519.48 and 106,834.38

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Solution

The fourth proportional to 197,478.78, 272,519.48 and 106,834.38 is: 147,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,478.78 : 272,519.48 = 106,834.38 : x
  2. Step 2: Convert to fraction form
    197,478.78/272,519.48 = 106,834.38/x
  3. Step 3: Cross multiply
    197,478.78x = 272,519.48 × 106,834.38
  4. Step 4: Simplify right side
    197,478.78x = 29,114,449,149.55
  5. Step 5: Solve for x
    x = 29,114,449,149.55/197,478.78
  6. Step 6: Final answer
    x = 147,430.77

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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.