Home / 125,202.51-187,744.37-72,628.11

Finding the Fourth Proportional to 125,202.51, 187,744.37 and 72,628.11

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Solution

The fourth proportional to 125,202.51, 187,744.37 and 72,628.11 is: 108,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,202.51 : 187,744.37 = 72,628.11 : x
  2. Step 2: Convert to fraction form
    125,202.51/187,744.37 = 72,628.11/x
  3. Step 3: Cross multiply
    125,202.51x = 187,744.37 × 72,628.11
  4. Step 4: Simplify right side
    125,202.51x = 13,635,518,393.10
  5. Step 5: Solve for x
    x = 13,635,518,393.10/125,202.51
  6. Step 6: Final answer
    x = 108,907.71

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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.