Home / 186,979.32-257,941.71-135,912.87

Finding the Fourth Proportional to 186,979.32, 257,941.71 and 135,912.87

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Solution

The fourth proportional to 186,979.32, 257,941.71 and 135,912.87 is: 187,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,979.32 : 257,941.71 = 135,912.87 : x
  2. Step 2: Convert to fraction form
    186,979.32/257,941.71 = 135,912.87/x
  3. Step 3: Cross multiply
    186,979.32x = 257,941.71 × 135,912.87
  4. Step 4: Simplify right side
    186,979.32x = 35,057,598,098.81
  5. Step 5: Solve for x
    x = 35,057,598,098.81/186,979.32
  6. Step 6: Final answer
    x = 187,494.52

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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.