Home / 126,567.40-189,620.70-103,066.60

Finding the Fourth Proportional to 126,567.40, 189,620.70 and 103,066.60

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Solution

The fourth proportional to 126,567.40, 189,620.70 and 103,066.60 is: 154,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,567.40 : 189,620.70 = 103,066.60 : x
  2. Step 2: Convert to fraction form
    126,567.40/189,620.70 = 103,066.60/x
  3. Step 3: Cross multiply
    126,567.40x = 189,620.70 × 103,066.60
  4. Step 4: Simplify right side
    126,567.40x = 19,543,560,838.62
  5. Step 5: Solve for x
    x = 19,543,560,838.62/126,567.40
  6. Step 6: Final answer
    x = 154,412.28

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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.