Home / 115,146.24-172,704.24-45,075.12

Finding the Fourth Proportional to 115,146.24, 172,704.24 and 45,075.12

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Solution

The fourth proportional to 115,146.24, 172,704.24 and 45,075.12 is: 67,606.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,146.24 : 172,704.24 = 45,075.12 : x
  2. Step 2: Convert to fraction form
    115,146.24/172,704.24 = 45,075.12/x
  3. Step 3: Cross multiply
    115,146.24x = 172,704.24 × 45,075.12
  4. Step 4: Simplify right side
    115,146.24x = 7,784,664,342.51
  5. Step 5: Solve for x
    x = 7,784,664,342.51/115,146.24
  6. Step 6: Final answer
    x = 67,606.76

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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.