Home / 126,728.22-174,873.02-75,730.80

Finding the Fourth Proportional to 126,728.22, 174,873.02 and 75,730.80

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Solution

The fourth proportional to 126,728.22, 174,873.02 and 75,730.80 is: 104,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,728.22 : 174,873.02 = 75,730.80 : x
  2. Step 2: Convert to fraction form
    126,728.22/174,873.02 = 75,730.80/x
  3. Step 3: Cross multiply
    126,728.22x = 174,873.02 × 75,730.80
  4. Step 4: Simplify right side
    126,728.22x = 13,243,273,703.02
  5. Step 5: Solve for x
    x = 13,243,273,703.02/126,728.22
  6. Step 6: Final answer
    x = 104,501.38

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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.