Home / 134,147.55-185,141.13-86,539.32

Finding the Fourth Proportional to 134,147.55, 185,141.13 and 86,539.32

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Solution

The fourth proportional to 134,147.55, 185,141.13 and 86,539.32 is: 119,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,147.55 : 185,141.13 = 86,539.32 : x
  2. Step 2: Convert to fraction form
    134,147.55/185,141.13 = 86,539.32/x
  3. Step 3: Cross multiply
    134,147.55x = 185,141.13 × 86,539.32
  4. Step 4: Simplify right side
    134,147.55x = 16,021,987,494.23
  5. Step 5: Solve for x
    x = 16,021,987,494.23/134,147.55
  6. Step 6: Final answer
    x = 119,435.56

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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.