Home / 258,263.96-387,174.04-89,762.39

Finding the Fourth Proportional to 258,263.96, 387,174.04 and 89,762.39

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Solution

The fourth proportional to 258,263.96, 387,174.04 and 89,762.39 is: 134,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,263.96 : 387,174.04 = 89,762.39 : x
  2. Step 2: Convert to fraction form
    258,263.96/387,174.04 = 89,762.39/x
  3. Step 3: Cross multiply
    258,263.96x = 387,174.04 × 89,762.39
  4. Step 4: Simplify right side
    258,263.96x = 34,753,667,176.36
  5. Step 5: Solve for x
    x = 34,753,667,176.36/258,263.96
  6. Step 6: Final answer
    x = 134,566.46

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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.