Home / 125,598.23-188,557.27-81,409.89

Finding the Fourth Proportional to 125,598.23, 188,557.27 and 81,409.89

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Solution

The fourth proportional to 125,598.23, 188,557.27 and 81,409.89 is: 122,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,598.23 : 188,557.27 = 81,409.89 : x
  2. Step 2: Convert to fraction form
    125,598.23/188,557.27 = 81,409.89/x
  3. Step 3: Cross multiply
    125,598.23x = 188,557.27 × 81,409.89
  4. Step 4: Simplify right side
    125,598.23x = 15,350,427,112.97
  5. Step 5: Solve for x
    x = 15,350,427,112.97/125,598.23
  6. Step 6: Final answer
    x = 122,218.50

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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.