Home / 78,046.04-117,134.69-73,125.29

Finding the Fourth Proportional to 78,046.04, 117,134.69 and 73,125.29

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Solution

The fourth proportional to 78,046.04, 117,134.69 and 73,125.29 is: 109,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,046.04 : 117,134.69 = 73,125.29 : x
  2. Step 2: Convert to fraction form
    78,046.04/117,134.69 = 73,125.29/x
  3. Step 3: Cross multiply
    78,046.04x = 117,134.69 × 73,125.29
  4. Step 4: Simplify right side
    78,046.04x = 8,565,507,224.01
  5. Step 5: Solve for x
    x = 8,565,507,224.01/78,046.04
  6. Step 6: Final answer
    x = 109,749.42

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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.