Home / 458,160.70-687,241.05-125,736.70

Finding the Fourth Proportional to 458,160.70, 687,241.05 and 125,736.70

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Solution

The fourth proportional to 458,160.70, 687,241.05 and 125,736.70 is: 188,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,160.70 : 687,241.05 = 125,736.70 : x
  2. Step 2: Convert to fraction form
    458,160.70/687,241.05 = 125,736.70/x
  3. Step 3: Cross multiply
    458,160.70x = 687,241.05 × 125,736.70
  4. Step 4: Simplify right side
    458,160.70x = 86,411,421,731.54
  5. Step 5: Solve for x
    x = 86,411,421,731.54/458,160.70
  6. Step 6: Final answer
    x = 188,605.05

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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.