Home / 126,808.56-174,993.64-70,218.72

Finding the Fourth Proportional to 126,808.56, 174,993.64 and 70,218.72

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Solution

The fourth proportional to 126,808.56, 174,993.64 and 70,218.72 is: 96,900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,808.56 : 174,993.64 = 70,218.72 : x
  2. Step 2: Convert to fraction form
    126,808.56/174,993.64 = 70,218.72/x
  3. Step 3: Cross multiply
    126,808.56x = 174,993.64 × 70,218.72
  4. Step 4: Simplify right side
    126,808.56x = 12,287,829,408.94
  5. Step 5: Solve for x
    x = 12,287,829,408.94/126,808.56
  6. Step 6: Final answer
    x = 96,900.63

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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.