Home / 125,972.36-188,036.86-111,026.10

Finding the Fourth Proportional to 125,972.36, 188,036.86 and 111,026.10

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Solution

The fourth proportional to 125,972.36, 188,036.86 and 111,026.10 is: 165,726.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,972.36 : 188,036.86 = 111,026.10 : x
  2. Step 2: Convert to fraction form
    125,972.36/188,036.86 = 111,026.10/x
  3. Step 3: Cross multiply
    125,972.36x = 188,036.86 × 111,026.10
  4. Step 4: Simplify right side
    125,972.36x = 20,876,999,222.05
  5. Step 5: Solve for x
    x = 20,876,999,222.05/125,972.36
  6. Step 6: Final answer
    x = 165,726.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.