Home / 185,869.40-256,491.42-105,295.28

Finding the Fourth Proportional to 185,869.40, 256,491.42 and 105,295.28

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Solution

The fourth proportional to 185,869.40, 256,491.42 and 105,295.28 is: 145,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,869.40 : 256,491.42 = 105,295.28 : x
  2. Step 2: Convert to fraction form
    185,869.40/256,491.42 = 105,295.28/x
  3. Step 3: Cross multiply
    185,869.40x = 256,491.42 × 105,295.28
  4. Step 4: Simplify right side
    185,869.40x = 27,007,336,132.87
  5. Step 5: Solve for x
    x = 27,007,336,132.87/185,869.40
  6. Step 6: Final answer
    x = 145,302.75

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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.