Home / 104,915.30-144,783.12-57,168.66

Finding the Fourth Proportional to 104,915.30, 144,783.12 and 57,168.66

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Solution

The fourth proportional to 104,915.30, 144,783.12 and 57,168.66 is: 78,892.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,915.30 : 144,783.12 = 57,168.66 : x
  2. Step 2: Convert to fraction form
    104,915.30/144,783.12 = 57,168.66/x
  3. Step 3: Cross multiply
    104,915.30x = 144,783.12 × 57,168.66
  4. Step 4: Simplify right side
    104,915.30x = 8,277,056,961.02
  5. Step 5: Solve for x
    x = 8,277,056,961.02/104,915.30
  6. Step 6: Final answer
    x = 78,892.75

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1.5x scale

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.