Home / 104,905.53-144,771.29-57,158.86

Finding the Fourth Proportional to 104,905.53, 144,771.29 and 57,158.86

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Solution

The fourth proportional to 104,905.53, 144,771.29 and 57,158.86 is: 78,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,905.53 : 144,771.29 = 57,158.86 : x
  2. Step 2: Convert to fraction form
    104,905.53/144,771.29 = 57,158.86/x
  3. Step 3: Cross multiply
    104,905.53x = 144,771.29 × 57,158.86
  4. Step 4: Simplify right side
    104,905.53x = 8,274,961,897.13
  5. Step 5: Solve for x
    x = 8,274,961,897.13/104,905.53
  6. Step 6: Final answer
    x = 78,880.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.