Home / 258,125.60-387,187.59-68,605.04

Finding the Fourth Proportional to 258,125.60, 387,187.59 and 68,605.04

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Solution

The fourth proportional to 258,125.60, 387,187.59 and 68,605.04 is: 102,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,125.60 : 387,187.59 = 68,605.04 : x
  2. Step 2: Convert to fraction form
    258,125.60/387,187.59 = 68,605.04/x
  3. Step 3: Cross multiply
    258,125.60x = 387,187.59 × 68,605.04
  4. Step 4: Simplify right side
    258,125.60x = 26,563,021,324.69
  5. Step 5: Solve for x
    x = 26,563,021,324.69/258,125.60
  6. Step 6: Final answer
    x = 102,907.35

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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.