Home / 258,142.74-387,313.38-125,012.76

Finding the Fourth Proportional to 258,142.74, 387,313.38 and 125,012.76

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Solution

The fourth proportional to 258,142.74, 387,313.38 and 125,012.76 is: 187,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,142.74 : 387,313.38 = 125,012.76 : x
  2. Step 2: Convert to fraction form
    258,142.74/387,313.38 = 125,012.76/x
  3. Step 3: Cross multiply
    258,142.74x = 387,313.38 × 125,012.76
  4. Step 4: Simplify right side
    258,142.74x = 48,419,114,618.73
  5. Step 5: Solve for x
    x = 48,419,114,618.73/258,142.74
  6. Step 6: Final answer
    x = 187,567.21

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1.5x scale

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.