Home / 129,435.16-194,152.58-40,696.42

Finding the Fourth Proportional to 129,435.16, 194,152.58 and 40,696.42

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Solution

The fourth proportional to 129,435.16, 194,152.58 and 40,696.42 is: 61,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,435.16 : 194,152.58 = 40,696.42 : x
  2. Step 2: Convert to fraction form
    129,435.16/194,152.58 = 40,696.42/x
  3. Step 3: Cross multiply
    129,435.16x = 194,152.58 × 40,696.42
  4. Step 4: Simplify right side
    129,435.16x = 7,901,314,939.76
  5. Step 5: Solve for x
    x = 7,901,314,939.76/129,435.16
  6. Step 6: Final answer
    x = 61,044.58

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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.