Home / 186,900.09-257,936.85-106,331.01

Finding the Fourth Proportional to 186,900.09, 257,936.85 and 106,331.01

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Solution

The fourth proportional to 186,900.09, 257,936.85 and 106,331.01 is: 146,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,900.09 : 257,936.85 = 106,331.01 : x
  2. Step 2: Convert to fraction form
    186,900.09/257,936.85 = 106,331.01/x
  3. Step 3: Cross multiply
    186,900.09x = 257,936.85 × 106,331.01
  4. Step 4: Simplify right side
    186,900.09x = 27,426,685,776.72
  5. Step 5: Solve for x
    x = 27,426,685,776.72/186,900.09
  6. Step 6: Final answer
    x = 146,745.17

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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.