Home / 111,378.48-167,065.21-27,139.02

Finding the Fourth Proportional to 111,378.48, 167,065.21 and 27,139.02

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Solution

The fourth proportional to 111,378.48, 167,065.21 and 27,139.02 is: 40,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,378.48 : 167,065.21 = 27,139.02 : x
  2. Step 2: Convert to fraction form
    111,378.48/167,065.21 = 27,139.02/x
  3. Step 3: Cross multiply
    111,378.48x = 167,065.21 × 27,139.02
  4. Step 4: Simplify right side
    111,378.48x = 4,533,986,075.49
  5. Step 5: Solve for x
    x = 4,533,986,075.49/111,378.48
  6. Step 6: Final answer
    x = 40,707.92

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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.