Home / 130,872.54-196,308.80-42,126.06

Finding the Fourth Proportional to 130,872.54, 196,308.80 and 42,126.06

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Solution

The fourth proportional to 130,872.54, 196,308.80 and 42,126.06 is: 63,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,872.54 : 196,308.80 = 42,126.06 : x
  2. Step 2: Convert to fraction form
    130,872.54/196,308.80 = 42,126.06/x
  3. Step 3: Cross multiply
    130,872.54x = 196,308.80 × 42,126.06
  4. Step 4: Simplify right side
    130,872.54x = 8,269,716,287.33
  5. Step 5: Solve for x
    x = 8,269,716,287.33/130,872.54
  6. Step 6: Final answer
    x = 63,189.09

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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.