Home / 126,602.36-174,755.21-72,908.77

Finding the Fourth Proportional to 126,602.36, 174,755.21 and 72,908.77

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Solution

The fourth proportional to 126,602.36, 174,755.21 and 72,908.77 is: 100,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,602.36 : 174,755.21 = 72,908.77 : x
  2. Step 2: Convert to fraction form
    126,602.36/174,755.21 = 72,908.77/x
  3. Step 3: Cross multiply
    126,602.36x = 174,755.21 × 72,908.77
  4. Step 4: Simplify right side
    126,602.36x = 12,741,187,412.19
  5. Step 5: Solve for x
    x = 12,741,187,412.19/126,602.36
  6. Step 6: Final answer
    x = 100,639.41

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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.