Home / 185,787.58-256,395.90-105,218.50

Finding the Fourth Proportional to 185,787.58, 256,395.90 and 105,218.50

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Solution

The fourth proportional to 185,787.58, 256,395.90 and 105,218.50 is: 145,206.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,787.58 : 256,395.90 = 105,218.50 : x
  2. Step 2: Convert to fraction form
    185,787.58/256,395.90 = 105,218.50/x
  3. Step 3: Cross multiply
    185,787.58x = 256,395.90 × 105,218.50
  4. Step 4: Simplify right side
    185,787.58x = 26,977,592,004.15
  5. Step 5: Solve for x
    x = 26,977,592,004.15/185,787.58
  6. Step 6: Final answer
    x = 145,206.65

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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.