Home / 103,455.40-155,183.10-41,125.90

Finding the Fourth Proportional to 103,455.40, 155,183.10 and 41,125.90

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Solution

The fourth proportional to 103,455.40, 155,183.10 and 41,125.90 is: 61,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,455.40 : 155,183.10 = 41,125.90 : x
  2. Step 2: Convert to fraction form
    103,455.40/155,183.10 = 41,125.90/x
  3. Step 3: Cross multiply
    103,455.40x = 155,183.10 × 41,125.90
  4. Step 4: Simplify right side
    103,455.40x = 6,382,044,652.29
  5. Step 5: Solve for x
    x = 6,382,044,652.29/103,455.40
  6. Step 6: Final answer
    x = 61,688.85

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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.