Home / 130,029.10-194,715.60-103,785.10

Finding the Fourth Proportional to 130,029.10, 194,715.60 and 103,785.10

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Solution

The fourth proportional to 130,029.10, 194,715.60 and 103,785.10 is: 155,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,029.10 : 194,715.60 = 103,785.10 : x
  2. Step 2: Convert to fraction form
    130,029.10/194,715.60 = 103,785.10/x
  3. Step 3: Cross multiply
    130,029.10x = 194,715.60 × 103,785.10
  4. Step 4: Simplify right side
    130,029.10x = 20,208,578,017.56
  5. Step 5: Solve for x
    x = 20,208,578,017.56/130,029.10
  6. Step 6: Final answer
    x = 155,415.81

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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.