Home / 125,666.19-188,513.03-54,539.94

Finding the Fourth Proportional to 125,666.19, 188,513.03 and 54,539.94

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Solution

The fourth proportional to 125,666.19, 188,513.03 and 54,539.94 is: 81,815.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,666.19 : 188,513.03 = 54,539.94 : x
  2. Step 2: Convert to fraction form
    125,666.19/188,513.03 = 54,539.94/x
  3. Step 3: Cross multiply
    125,666.19x = 188,513.03 × 54,539.94
  4. Step 4: Simplify right side
    125,666.19x = 10,281,489,072.72
  5. Step 5: Solve for x
    x = 10,281,489,072.72/125,666.19
  6. Step 6: Final answer
    x = 81,815.87

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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.