Home / 126,120.60-174,039.46-72,402.10

Finding the Fourth Proportional to 126,120.60, 174,039.46 and 72,402.10

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Solution

The fourth proportional to 126,120.60, 174,039.46 and 72,402.10 is: 99,910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,120.60 : 174,039.46 = 72,402.10 : x
  2. Step 2: Convert to fraction form
    126,120.60/174,039.46 = 72,402.10/x
  3. Step 3: Cross multiply
    126,120.60x = 174,039.46 × 72,402.10
  4. Step 4: Simplify right side
    126,120.60x = 12,600,821,770.76
  5. Step 5: Solve for x
    x = 12,600,821,770.76/126,120.60
  6. Step 6: Final answer
    x = 99,910.89

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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.