Home / 197,336.42-272,448.78-136,885.92

Finding the Fourth Proportional to 197,336.42, 272,448.78 and 136,885.92

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Solution

The fourth proportional to 197,336.42, 272,448.78 and 136,885.92 is: 188,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,336.42 : 272,448.78 = 136,885.92 : x
  2. Step 2: Convert to fraction form
    197,336.42/272,448.78 = 136,885.92/x
  3. Step 3: Cross multiply
    197,336.42x = 272,448.78 × 136,885.92
  4. Step 4: Simplify right side
    197,336.42x = 37,294,401,389.86
  5. Step 5: Solve for x
    x = 37,294,401,389.86/197,336.42
  6. Step 6: Final answer
    x = 188,988.94

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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.