Home / 188,061.40-259,379.60-130,699.56

Finding the Fourth Proportional to 188,061.40, 259,379.60 and 130,699.56

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Solution

The fourth proportional to 188,061.40, 259,379.60 and 130,699.56 is: 180,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,061.40 : 259,379.60 = 130,699.56 : x
  2. Step 2: Convert to fraction form
    188,061.40/259,379.60 = 130,699.56/x
  3. Step 3: Cross multiply
    188,061.40x = 259,379.60 × 130,699.56
  4. Step 4: Simplify right side
    188,061.40x = 33,900,799,592.98
  5. Step 5: Solve for x
    x = 33,900,799,592.98/188,061.40
  6. Step 6: Final answer
    x = 180,264.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.