Home / 125,837.50-188,785.45-42,731.58

Finding the Fourth Proportional to 125,837.50, 188,785.45 and 42,731.58

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Solution

The fourth proportional to 125,837.50, 188,785.45 and 42,731.58 is: 64,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,837.50 : 188,785.45 = 42,731.58 : x
  2. Step 2: Convert to fraction form
    125,837.50/188,785.45 = 42,731.58/x
  3. Step 3: Cross multiply
    125,837.50x = 188,785.45 × 42,731.58
  4. Step 4: Simplify right side
    125,837.50x = 8,067,100,559.51
  5. Step 5: Solve for x
    x = 8,067,100,559.51/125,837.50
  6. Step 6: Final answer
    x = 64,107.29

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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.