Home / 115,268.16-172,895.76-40,359.36

Finding the Fourth Proportional to 115,268.16, 172,895.76 and 40,359.36

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Solution

The fourth proportional to 115,268.16, 172,895.76 and 40,359.36 is: 60,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,268.16 : 172,895.76 = 40,359.36 : x
  2. Step 2: Convert to fraction form
    115,268.16/172,895.76 = 40,359.36/x
  3. Step 3: Cross multiply
    115,268.16x = 172,895.76 × 40,359.36
  4. Step 4: Simplify right side
    115,268.16x = 6,977,962,220.31
  5. Step 5: Solve for x
    x = 6,977,962,220.31/115,268.16
  6. Step 6: Final answer
    x = 60,536.77

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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.