Home / 103,582.92-155,377.73-28,703.80

Finding the Fourth Proportional to 103,582.92, 155,377.73 and 28,703.80

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Solution

The fourth proportional to 103,582.92, 155,377.73 and 28,703.80 is: 43,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,582.92 : 155,377.73 = 28,703.80 : x
  2. Step 2: Convert to fraction form
    103,582.92/155,377.73 = 28,703.80/x
  3. Step 3: Cross multiply
    103,582.92x = 155,377.73 × 28,703.80
  4. Step 4: Simplify right side
    103,582.92x = 4,459,931,286.37
  5. Step 5: Solve for x
    x = 4,459,931,286.37/103,582.92
  6. Step 6: Final answer
    x = 43,056.63

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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.