Home / 129,416.08-194,125.32-40,667.62

Finding the Fourth Proportional to 129,416.08, 194,125.32 and 40,667.62

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Solution

The fourth proportional to 129,416.08, 194,125.32 and 40,667.62 is: 61,001.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416.08 : 194,125.32 = 40,667.62 : x
  2. Step 2: Convert to fraction form
    129,416.08/194,125.32 = 40,667.62/x
  3. Step 3: Cross multiply
    129,416.08x = 194,125.32 × 40,667.62
  4. Step 4: Simplify right side
    129,416.08x = 7,894,614,746.14
  5. Step 5: Solve for x
    x = 7,894,614,746.14/129,416.08
  6. Step 6: Final answer
    x = 61,001.81

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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.