Home / 258,142.13-387,154.77-98,160.85

Finding the Fourth Proportional to 258,142.13, 387,154.77 and 98,160.85

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Solution

The fourth proportional to 258,142.13, 387,154.77 and 98,160.85 is: 147,219.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,142.13 : 387,154.77 = 98,160.85 : x
  2. Step 2: Convert to fraction form
    258,142.13/387,154.77 = 98,160.85/x
  3. Step 3: Cross multiply
    258,142.13x = 387,154.77 × 98,160.85
  4. Step 4: Simplify right side
    258,142.13x = 38,003,441,304.75
  5. Step 5: Solve for x
    x = 38,003,441,304.75/258,142.13
  6. Step 6: Final answer
    x = 147,219.06

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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.