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Finding the Fourth Proportional to 126,750.80, 175,250.04 and 111,004.40

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Solution

The fourth proportional to 126,750.80, 175,250.04 and 111,004.40 is: 153,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,750.80 : 175,250.04 = 111,004.40 : x
  2. Step 2: Convert to fraction form
    126,750.80/175,250.04 = 111,004.40/x
  3. Step 3: Cross multiply
    126,750.80x = 175,250.04 × 111,004.40
  4. Step 4: Simplify right side
    126,750.80x = 19,453,525,540.18
  5. Step 5: Solve for x
    x = 19,453,525,540.18/126,750.80
  6. Step 6: Final answer
    x = 153,478.52

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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.