Home / 103,642.07-143,023.86-57,701.09

Finding the Fourth Proportional to 103,642.07, 143,023.86 and 57,701.09

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Solution

The fourth proportional to 103,642.07, 143,023.86 and 57,701.09 is: 79,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,642.07 : 143,023.86 = 57,701.09 : x
  2. Step 2: Convert to fraction form
    103,642.07/143,023.86 = 57,701.09/x
  3. Step 3: Cross multiply
    103,642.07x = 143,023.86 × 57,701.09
  4. Step 4: Simplify right side
    103,642.07x = 8,252,632,975.57
  5. Step 5: Solve for x
    x = 8,252,632,975.57/103,642.07
  6. Step 6: Final answer
    x = 79,626.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.