Home / 186,255.66-257,025.18-105,681.45

Finding the Fourth Proportional to 186,255.66, 257,025.18 and 105,681.45

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Solution

The fourth proportional to 186,255.66, 257,025.18 and 105,681.45 is: 145,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,255.66 : 257,025.18 = 105,681.45 : x
  2. Step 2: Convert to fraction form
    186,255.66/257,025.18 = 105,681.45/x
  3. Step 3: Cross multiply
    186,255.66x = 257,025.18 × 105,681.45
  4. Step 4: Simplify right side
    186,255.66x = 27,162,793,708.91
  5. Step 5: Solve for x
    x = 27,162,793,708.91/186,255.66
  6. Step 6: Final answer
    x = 145,836.07

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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.