Home / 130,698.21-196,056.69-54,720.30

Finding the Fourth Proportional to 130,698.21, 196,056.69 and 54,720.30

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Solution

The fourth proportional to 130,698.21, 196,056.69 and 54,720.30 is: 82,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,698.21 : 196,056.69 = 54,720.30 : x
  2. Step 2: Convert to fraction form
    130,698.21/196,056.69 = 54,720.30/x
  3. Step 3: Cross multiply
    130,698.21x = 196,056.69 × 54,720.30
  4. Step 4: Simplify right side
    130,698.21x = 10,728,280,417.93
  5. Step 5: Solve for x
    x = 10,728,280,417.93/130,698.21
  6. Step 6: Final answer
    x = 82,084.37

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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.