Home / 189,150.88-261,024.68-103,110.80

Finding the Fourth Proportional to 189,150.88, 261,024.68 and 103,110.80

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Solution

The fourth proportional to 189,150.88, 261,024.68 and 103,110.80 is: 142,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,150.88 : 261,024.68 = 103,110.80 : x
  2. Step 2: Convert to fraction form
    189,150.88/261,024.68 = 103,110.80/x
  3. Step 3: Cross multiply
    189,150.88x = 261,024.68 × 103,110.80
  4. Step 4: Simplify right side
    189,150.88x = 26,914,463,574.54
  5. Step 5: Solve for x
    x = 26,914,463,574.54/189,150.88
  6. Step 6: Final answer
    x = 142,290.98

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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.