Home / 125,006.45-172,507.56-67,644.51

Finding the Fourth Proportional to 125,006.45, 172,507.56 and 67,644.51

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Solution

The fourth proportional to 125,006.45, 172,507.56 and 67,644.51 is: 93,348.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,006.45 : 172,507.56 = 67,644.51 : x
  2. Step 2: Convert to fraction form
    125,006.45/172,507.56 = 67,644.51/x
  3. Step 3: Cross multiply
    125,006.45x = 172,507.56 × 67,644.51
  4. Step 4: Simplify right side
    125,006.45x = 11,669,189,367.50
  5. Step 5: Solve for x
    x = 11,669,189,367.50/125,006.45
  6. Step 6: Final answer
    x = 93,348.70

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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.