Home / 129,240.90-193,926.96-76,009.32

Finding the Fourth Proportional to 129,240.90, 193,926.96 and 76,009.32

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Solution

The fourth proportional to 129,240.90, 193,926.96 and 76,009.32 is: 114,052.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,240.90 : 193,926.96 = 76,009.32 : x
  2. Step 2: Convert to fraction form
    129,240.90/193,926.96 = 76,009.32/x
  3. Step 3: Cross multiply
    129,240.90x = 193,926.96 × 76,009.32
  4. Step 4: Simplify right side
    129,240.90x = 14,740,256,359.27
  5. Step 5: Solve for x
    x = 14,740,256,359.27/129,240.90
  6. Step 6: Final answer
    x = 114,052.57

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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.