Home / 129,340.47-194,018.90-40,597.48

Finding the Fourth Proportional to 129,340.47, 194,018.90 and 40,597.48

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Solution

The fourth proportional to 129,340.47, 194,018.90 and 40,597.48 is: 60,898.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,340.47 : 194,018.90 = 40,597.48 : x
  2. Step 2: Convert to fraction form
    129,340.47/194,018.90 = 40,597.48/x
  3. Step 3: Cross multiply
    129,340.47x = 194,018.90 × 40,597.48
  4. Step 4: Simplify right side
    129,340.47x = 7,876,678,412.37
  5. Step 5: Solve for x
    x = 7,876,678,412.37/129,340.47
  6. Step 6: Final answer
    x = 60,898.79

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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.