Home / 126,720.15-174,831.06-73,003.77

Finding the Fourth Proportional to 126,720.15, 174,831.06 and 73,003.77

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Solution

The fourth proportional to 126,720.15, 174,831.06 and 73,003.77 is: 100,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,720.15 : 174,831.06 = 73,003.77 : x
  2. Step 2: Convert to fraction form
    126,720.15/174,831.06 = 73,003.77/x
  3. Step 3: Cross multiply
    126,720.15x = 174,831.06 × 73,003.77
  4. Step 4: Simplify right side
    126,720.15x = 12,763,326,493.10
  5. Step 5: Solve for x
    x = 12,763,326,493.10/126,720.15
  6. Step 6: Final answer
    x = 100,720.58

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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.