Home / 186,331.51-257,141.96-105,768.91

Finding the Fourth Proportional to 186,331.51, 257,141.96 and 105,768.91

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Solution

The fourth proportional to 186,331.51, 257,141.96 and 105,768.91 is: 145,963.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,331.51 : 257,141.96 = 105,768.91 : x
  2. Step 2: Convert to fraction form
    186,331.51/257,141.96 = 105,768.91/x
  3. Step 3: Cross multiply
    186,331.51x = 257,141.96 × 105,768.91
  4. Step 4: Simplify right side
    186,331.51x = 27,197,624,824.46
  5. Step 5: Solve for x
    x = 27,197,624,824.46/186,331.51
  6. Step 6: Final answer
    x = 145,963.64

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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.