Home / 258,125.58-387,148.41-131,859.18

Finding the Fourth Proportional to 258,125.58, 387,148.41 and 131,859.18

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Solution

The fourth proportional to 258,125.58, 387,148.41 and 131,859.18 is: 197,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,125.58 : 387,148.41 = 131,859.18 : x
  2. Step 2: Convert to fraction form
    258,125.58/387,148.41 = 131,859.18/x
  3. Step 3: Cross multiply
    258,125.58x = 387,148.41 × 131,859.18
  4. Step 4: Simplify right side
    258,125.58x = 51,049,071,880.90
  5. Step 5: Solve for x
    x = 51,049,071,880.90/258,125.58
  6. Step 6: Final answer
    x = 197,768.36

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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.