Home / 126,830.64-174,986.41-73,108.20

Finding the Fourth Proportional to 126,830.64, 174,986.41 and 73,108.20

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Solution

The fourth proportional to 126,830.64, 174,986.41 and 73,108.20 is: 100,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,830.64 : 174,986.41 = 73,108.20 : x
  2. Step 2: Convert to fraction form
    126,830.64/174,986.41 = 73,108.20/x
  3. Step 3: Cross multiply
    126,830.64x = 174,986.41 × 73,108.20
  4. Step 4: Simplify right side
    126,830.64x = 12,792,941,459.56
  5. Step 5: Solve for x
    x = 12,792,941,459.56/126,830.64
  6. Step 6: Final answer
    x = 100,866.33

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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.