Home / 127,725.25-176,315.10-90,955.30

Finding the Fourth Proportional to 127,725.25, 176,315.10 and 90,955.30

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Solution

The fourth proportional to 127,725.25, 176,315.10 and 90,955.30 is: 125,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,725.25 : 176,315.10 = 90,955.30 : x
  2. Step 2: Convert to fraction form
    127,725.25/176,315.10 = 90,955.30/x
  3. Step 3: Cross multiply
    127,725.25x = 176,315.10 × 90,955.30
  4. Step 4: Simplify right side
    127,725.25x = 16,036,792,815.03
  5. Step 5: Solve for x
    x = 16,036,792,815.03/127,725.25
  6. Step 6: Final answer
    x = 125,556.95

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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.