Home / 126,006.40-189,009.60-103,844.80

Finding the Fourth Proportional to 126,006.40, 189,009.60 and 103,844.80

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Solution

The fourth proportional to 126,006.40, 189,009.60 and 103,844.80 is: 155,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,006.40 : 189,009.60 = 103,844.80 : x
  2. Step 2: Convert to fraction form
    126,006.40/189,009.60 = 103,844.80/x
  3. Step 3: Cross multiply
    126,006.40x = 189,009.60 × 103,844.80
  4. Step 4: Simplify right side
    126,006.40x = 19,627,664,110.08
  5. Step 5: Solve for x
    x = 19,627,664,110.08/126,006.40
  6. Step 6: Final answer
    x = 155,767.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.