Home / 134,589.48-185,688.90-86,874.54

Finding the Fourth Proportional to 134,589.48, 185,688.90 and 86,874.54

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Solution

The fourth proportional to 134,589.48, 185,688.90 and 86,874.54 is: 119,858.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,589.48 : 185,688.90 = 86,874.54 : x
  2. Step 2: Convert to fraction form
    134,589.48/185,688.90 = 86,874.54/x
  3. Step 3: Cross multiply
    134,589.48x = 185,688.90 × 86,874.54
  4. Step 4: Simplify right side
    134,589.48x = 16,131,637,770.61
  5. Step 5: Solve for x
    x = 16,131,637,770.61/134,589.48
  6. Step 6: Final answer
    x = 119,858.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.