Home / 258,346.84-387,159.38-125,191.76

Finding the Fourth Proportional to 258,346.84, 387,159.38 and 125,191.76

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Solution

The fourth proportional to 258,346.84, 387,159.38 and 125,191.76 is: 187,612.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,346.84 : 387,159.38 = 125,191.76 : x
  2. Step 2: Convert to fraction form
    258,346.84/387,159.38 = 125,191.76/x
  3. Step 3: Cross multiply
    258,346.84x = 387,159.38 × 125,191.76
  4. Step 4: Simplify right side
    258,346.84x = 48,469,164,182.71
  5. Step 5: Solve for x
    x = 48,469,164,182.71/258,346.84
  6. Step 6: Final answer
    x = 187,612.76

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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.