Home / 258,333.84-387,139.91-125,178.75

Finding the Fourth Proportional to 258,333.84, 387,139.91 and 125,178.75

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Solution

The fourth proportional to 258,333.84, 387,139.91 and 125,178.75 is: 187,593.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,333.84 : 387,139.91 = 125,178.75 : x
  2. Step 2: Convert to fraction form
    258,333.84/387,139.91 = 125,178.75/x
  3. Step 3: Cross multiply
    258,333.84x = 387,139.91 × 125,178.75
  4. Step 4: Simplify right side
    258,333.84x = 48,461,689,383.02
  5. Step 5: Solve for x
    x = 48,461,689,383.02/258,333.84
  6. Step 6: Final answer
    x = 187,593.27

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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.