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Finding the Fourth Proportional to 125,999.88, 189,001.23 and 53,943.09

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Solution

The fourth proportional to 125,999.88, 189,001.23 and 53,943.09 is: 80,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,999.88 : 189,001.23 = 53,943.09 : x
  2. Step 2: Convert to fraction form
    125,999.88/189,001.23 = 53,943.09/x
  3. Step 3: Cross multiply
    125,999.88x = 189,001.23 × 53,943.09
  4. Step 4: Simplify right side
    125,999.88x = 10,195,310,360.00
  5. Step 5: Solve for x
    x = 10,195,310,360.00/125,999.88
  6. Step 6: Final answer
    x = 80,915.24

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1.5x scale

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.