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Finding the Fourth Proportional to 125,460.48, 188,141.62 and 45,479.46

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Solution

The fourth proportional to 125,460.48, 188,141.62 and 45,479.46 is: 68,201.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,460.48 : 188,141.62 = 45,479.46 : x
  2. Step 2: Convert to fraction form
    125,460.48/188,141.62 = 45,479.46/x
  3. Step 3: Cross multiply
    125,460.48x = 188,141.62 × 45,479.46
  4. Step 4: Simplify right side
    125,460.48x = 8,556,579,281.13
  5. Step 5: Solve for x
    x = 8,556,579,281.13/125,460.48
  6. Step 6: Final answer
    x = 68,201.39

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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.