Home / 129,314.70-194,117.85-99,863.10

Finding the Fourth Proportional to 129,314.70, 194,117.85 and 99,863.10

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Solution

The fourth proportional to 129,314.70, 194,117.85 and 99,863.10 is: 149,907.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,314.70 : 194,117.85 = 99,863.10 : x
  2. Step 2: Convert to fraction form
    129,314.70/194,117.85 = 99,863.10/x
  3. Step 3: Cross multiply
    129,314.70x = 194,117.85 × 99,863.10
  4. Step 4: Simplify right side
    129,314.70x = 19,385,210,266.34
  5. Step 5: Solve for x
    x = 19,385,210,266.34/129,314.70
  6. Step 6: Final answer
    x = 149,907.24

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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.