Home / 187,143.63-258,258.87-102,260.69

Finding the Fourth Proportional to 187,143.63, 258,258.87 and 102,260.69

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Solution

The fourth proportional to 187,143.63, 258,258.87 and 102,260.69 is: 141,120.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,143.63 : 258,258.87 = 102,260.69 : x
  2. Step 2: Convert to fraction form
    187,143.63/258,258.87 = 102,260.69/x
  3. Step 3: Cross multiply
    187,143.63x = 258,258.87 × 102,260.69
  4. Step 4: Simplify right side
    187,143.63x = 26,409,729,922.00
  5. Step 5: Solve for x
    x = 26,409,729,922.00/187,143.63
  6. Step 6: Final answer
    x = 141,120.11

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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.