Home / 125,977.05-188,043.80-111,030.66

Finding the Fourth Proportional to 125,977.05, 188,043.80 and 111,030.66

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Solution

The fourth proportional to 125,977.05, 188,043.80 and 111,030.66 is: 165,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,977.05 : 188,043.80 = 111,030.66 : x
  2. Step 2: Convert to fraction form
    125,977.05/188,043.80 = 111,030.66/x
  3. Step 3: Cross multiply
    125,977.05x = 188,043.80 × 111,030.66
  4. Step 4: Simplify right side
    125,977.05x = 20,878,626,667.75
  5. Step 5: Solve for x
    x = 20,878,626,667.75/125,977.05
  6. Step 6: Final answer
    x = 165,733.57

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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.