Home / 127,010.18-190,515.32-38,263.70

Finding the Fourth Proportional to 127,010.18, 190,515.32 and 38,263.70

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Solution

The fourth proportional to 127,010.18, 190,515.32 and 38,263.70 is: 57,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,010.18 : 190,515.32 = 38,263.70 : x
  2. Step 2: Convert to fraction form
    127,010.18/190,515.32 = 38,263.70/x
  3. Step 3: Cross multiply
    127,010.18x = 190,515.32 × 38,263.70
  4. Step 4: Simplify right side
    127,010.18x = 7,289,819,905.99
  5. Step 5: Solve for x
    x = 7,289,819,905.99/127,010.18
  6. Step 6: Final answer
    x = 57,395.56

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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.