Home / 207,761.50-286,662.03-126,087.94

Finding the Fourth Proportional to 207,761.50, 286,662.03 and 126,087.94

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Solution

The fourth proportional to 207,761.50, 286,662.03 and 126,087.94 is: 173,971.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,761.50 : 286,662.03 = 126,087.94 : x
  2. Step 2: Convert to fraction form
    207,761.50/286,662.03 = 126,087.94/x
  3. Step 3: Cross multiply
    207,761.50x = 286,662.03 × 126,087.94
  4. Step 4: Simplify right side
    207,761.50x = 36,144,624,838.92
  5. Step 5: Solve for x
    x = 36,144,624,838.92/207,761.50
  6. Step 6: Final answer
    x = 173,971.72

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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.