Home / 103,869.54-155,748.93-53,899.32

Finding the Fourth Proportional to 103,869.54, 155,748.93 and 53,899.32

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Solution

The fourth proportional to 103,869.54, 155,748.93 and 53,899.32 is: 80,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,869.54 : 155,748.93 = 53,899.32 : x
  2. Step 2: Convert to fraction form
    103,869.54/155,748.93 = 53,899.32/x
  3. Step 3: Cross multiply
    103,869.54x = 155,748.93 × 53,899.32
  4. Step 4: Simplify right side
    103,869.54x = 8,394,761,799.66
  5. Step 5: Solve for x
    x = 8,394,761,799.66/103,869.54
  6. Step 6: Final answer
    x = 80,820.25

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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.