Home / 124,131.28-186,051.11-57,430.52

Finding the Fourth Proportional to 124,131.28, 186,051.11 and 57,430.52

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Solution

The fourth proportional to 124,131.28, 186,051.11 and 57,430.52 is: 86,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,131.28 : 186,051.11 = 57,430.52 : x
  2. Step 2: Convert to fraction form
    124,131.28/186,051.11 = 57,430.52/x
  3. Step 3: Cross multiply
    124,131.28x = 186,051.11 × 57,430.52
  4. Step 4: Simplify right side
    124,131.28x = 10,685,011,993.88
  5. Step 5: Solve for x
    x = 10,685,011,993.88/124,131.28
  6. Step 6: Final answer
    x = 86,078.32

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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.