Home / 113,424.30-170,136.45-74,025.90

Finding the Fourth Proportional to 113,424.30, 170,136.45 and 74,025.90

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Solution

The fourth proportional to 113,424.30, 170,136.45 and 74,025.90 is: 111,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,424.30 : 170,136.45 = 74,025.90 : x
  2. Step 2: Convert to fraction form
    113,424.30/170,136.45 = 74,025.90/x
  3. Step 3: Cross multiply
    113,424.30x = 170,136.45 × 74,025.90
  4. Step 4: Simplify right side
    113,424.30x = 12,594,503,834.06
  5. Step 5: Solve for x
    x = 12,594,503,834.06/113,424.30
  6. Step 6: Final answer
    x = 111,038.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.