Home / 186,426.13-257,186.21-125,974.72

Finding the Fourth Proportional to 186,426.13, 257,186.21 and 125,974.72

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Solution

The fourth proportional to 186,426.13, 257,186.21 and 125,974.72 is: 173,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,426.13 : 257,186.21 = 125,974.72 : x
  2. Step 2: Convert to fraction form
    186,426.13/257,186.21 = 125,974.72/x
  3. Step 3: Cross multiply
    186,426.13x = 257,186.21 × 125,974.72
  4. Step 4: Simplify right side
    186,426.13x = 32,398,960,792.61
  5. Step 5: Solve for x
    x = 32,398,960,792.61/186,426.13
  6. Step 6: Final answer
    x = 173,789.81

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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.