Home / 187,993.90-259,429.80-103,111.30

Finding the Fourth Proportional to 187,993.90, 259,429.80 and 103,111.30

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Solution

The fourth proportional to 187,993.90, 259,429.80 and 103,111.30 is: 142,292.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,993.90 : 259,429.80 = 103,111.30 : x
  2. Step 2: Convert to fraction form
    187,993.90/259,429.80 = 103,111.30/x
  3. Step 3: Cross multiply
    187,993.90x = 259,429.80 × 103,111.30
  4. Step 4: Simplify right side
    187,993.90x = 26,750,143,936.74
  5. Step 5: Solve for x
    x = 26,750,143,936.74/187,993.90
  6. Step 6: Final answer
    x = 142,292.62

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1.5x scale

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.