Home / 126,528.26-174,603.78-72,815.18

Finding the Fourth Proportional to 126,528.26, 174,603.78 and 72,815.18

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Solution

The fourth proportional to 126,528.26, 174,603.78 and 72,815.18 is: 100,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,528.26 : 174,603.78 = 72,815.18 : x
  2. Step 2: Convert to fraction form
    126,528.26/174,603.78 = 72,815.18/x
  3. Step 3: Cross multiply
    126,528.26x = 174,603.78 × 72,815.18
  4. Step 4: Simplify right side
    126,528.26x = 12,713,804,796.36
  5. Step 5: Solve for x
    x = 12,713,804,796.36/126,528.26
  6. Step 6: Final answer
    x = 100,481.94

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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.