Home / 258,077.80-387,165.66-89,591.56

Finding the Fourth Proportional to 258,077.80, 387,165.66 and 89,591.56

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Solution

The fourth proportional to 258,077.80, 387,165.66 and 89,591.56 is: 134,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,077.80 : 387,165.66 = 89,591.56 : x
  2. Step 2: Convert to fraction form
    258,077.80/387,165.66 = 89,591.56/x
  3. Step 3: Cross multiply
    258,077.80x = 387,165.66 × 89,591.56
  4. Step 4: Simplify right side
    258,077.80x = 34,686,775,457.83
  5. Step 5: Solve for x
    x = 34,686,775,457.83/258,077.80
  6. Step 6: Final answer
    x = 134,404.34

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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.