Home / 127,313.20-190,969.80-38,580.40

Finding the Fourth Proportional to 127,313.20, 190,969.80 and 38,580.40

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Solution

The fourth proportional to 127,313.20, 190,969.80 and 38,580.40 is: 57,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,313.20 : 190,969.80 = 38,580.40 : x
  2. Step 2: Convert to fraction form
    127,313.20/190,969.80 = 38,580.40/x
  3. Step 3: Cross multiply
    127,313.20x = 190,969.80 × 38,580.40
  4. Step 4: Simplify right side
    127,313.20x = 7,367,691,271.92
  5. Step 5: Solve for x
    x = 7,367,691,271.92/127,313.20
  6. Step 6: Final answer
    x = 57,870.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.