Home / 189,146.97-261,019.17-103,106.70

Finding the Fourth Proportional to 189,146.97, 261,019.17 and 103,106.70

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Solution

The fourth proportional to 189,146.97, 261,019.17 and 103,106.70 is: 142,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,146.97 : 261,019.17 = 103,106.70 : x
  2. Step 2: Convert to fraction form
    189,146.97/261,019.17 = 103,106.70/x
  3. Step 3: Cross multiply
    189,146.97x = 261,019.17 × 103,106.70
  4. Step 4: Simplify right side
    189,146.97x = 26,912,825,255.44
  5. Step 5: Solve for x
    x = 26,912,825,255.44/189,146.97
  6. Step 6: Final answer
    x = 142,285.26

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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.