Home / 126,199.50-174,142.68-74,508.54

Finding the Fourth Proportional to 126,199.50, 174,142.68 and 74,508.54

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Solution

The fourth proportional to 126,199.50, 174,142.68 and 74,508.54 is: 102,814.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,199.50 : 174,142.68 = 74,508.54 : x
  2. Step 2: Convert to fraction form
    126,199.50/174,142.68 = 74,508.54/x
  3. Step 3: Cross multiply
    126,199.50x = 174,142.68 × 74,508.54
  4. Step 4: Simplify right side
    126,199.50x = 12,975,116,838.49
  5. Step 5: Solve for x
    x = 12,975,116,838.49/126,199.50
  6. Step 6: Final answer
    x = 102,814.33

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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.