Home / 259,724.40-389,505.60-102,001.20

Finding the Fourth Proportional to 259,724.40, 389,505.60 and 102,001.20

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Solution

The fourth proportional to 259,724.40, 389,505.60 and 102,001.20 is: 152,969.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,724.40 : 389,505.60 = 102,001.20 : x
  2. Step 2: Convert to fraction form
    259,724.40/389,505.60 = 102,001.20/x
  3. Step 3: Cross multiply
    259,724.40x = 389,505.60 × 102,001.20
  4. Step 4: Simplify right side
    259,724.40x = 39,730,038,606.72
  5. Step 5: Solve for x
    x = 39,730,038,606.72/259,724.40
  6. Step 6: Final answer
    x = 152,969.99

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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.