Home / 103,484.70-155,105.55-102,376.62

Finding the Fourth Proportional to 103,484.70, 155,105.55 and 102,376.62

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Solution

The fourth proportional to 103,484.70, 155,105.55 and 102,376.62 is: 153,444.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,484.70 : 155,105.55 = 102,376.62 : x
  2. Step 2: Convert to fraction form
    103,484.70/155,105.55 = 102,376.62/x
  3. Step 3: Cross multiply
    103,484.70x = 155,105.55 × 102,376.62
  4. Step 4: Simplify right side
    103,484.70x = 15,879,181,952.24
  5. Step 5: Solve for x
    x = 15,879,181,952.24/103,484.70
  6. Step 6: Final answer
    x = 153,444.73

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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.