Home / 134,596.09-185,742.62-78,040.27

Finding the Fourth Proportional to 134,596.09, 185,742.62 and 78,040.27

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Solution

The fourth proportional to 134,596.09, 185,742.62 and 78,040.27 is: 107,695.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,596.09 : 185,742.62 = 78,040.27 : x
  2. Step 2: Convert to fraction form
    134,596.09/185,742.62 = 78,040.27/x
  3. Step 3: Cross multiply
    134,596.09x = 185,742.62 × 78,040.27
  4. Step 4: Simplify right side
    134,596.09x = 14,495,404,215.31
  5. Step 5: Solve for x
    x = 14,495,404,215.31/134,596.09
  6. Step 6: Final answer
    x = 107,695.58

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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.