Home / 258,171.90-386,697.05-124,772.39

Finding the Fourth Proportional to 258,171.90, 386,697.05 and 124,772.39

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Solution

The fourth proportional to 258,171.90, 386,697.05 and 124,772.39 is: 186,887.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,171.90 : 386,697.05 = 124,772.39 : x
  2. Step 2: Convert to fraction form
    258,171.90/386,697.05 = 124,772.39/x
  3. Step 3: Cross multiply
    258,171.90x = 386,697.05 × 124,772.39
  4. Step 4: Simplify right side
    258,171.90x = 48,249,115,477.33
  5. Step 5: Solve for x
    x = 48,249,115,477.33/258,171.90
  6. Step 6: Final answer
    x = 186,887.56

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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.