Home / 126,720.48-174,873.60-70,129.92

Finding the Fourth Proportional to 126,720.48, 174,873.60 and 70,129.92

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Solution

The fourth proportional to 126,720.48, 174,873.60 and 70,129.92 is: 96,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,720.48 : 174,873.60 = 70,129.92 : x
  2. Step 2: Convert to fraction form
    126,720.48/174,873.60 = 70,129.92/x
  3. Step 3: Cross multiply
    126,720.48x = 174,873.60 × 70,129.92
  4. Step 4: Simplify right side
    126,720.48x = 12,263,871,578.11
  5. Step 5: Solve for x
    x = 12,263,871,578.11/126,720.48
  6. Step 6: Final answer
    x = 96,778.92

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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.