Home / 186,981.75-257,903.87-126,525.78

Finding the Fourth Proportional to 186,981.75, 257,903.87 and 126,525.78

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Solution

The fourth proportional to 186,981.75, 257,903.87 and 126,525.78 is: 174,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,981.75 : 257,903.87 = 126,525.78 : x
  2. Step 2: Convert to fraction form
    186,981.75/257,903.87 = 126,525.78/x
  3. Step 3: Cross multiply
    186,981.75x = 257,903.87 × 126,525.78
  4. Step 4: Simplify right side
    186,981.75x = 32,631,487,684.14
  5. Step 5: Solve for x
    x = 32,631,487,684.14/186,981.75
  6. Step 6: Final answer
    x = 174,516.97

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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.