Home / 130,860.06-196,142.94-66,638.00

Finding the Fourth Proportional to 130,860.06, 196,142.94 and 66,638.00

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Solution

The fourth proportional to 130,860.06, 196,142.94 and 66,638.00 is: 99,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,860.06 : 196,142.94 = 66,638.00 : x
  2. Step 2: Convert to fraction form
    130,860.06/196,142.94 = 66,638.00/x
  3. Step 3: Cross multiply
    130,860.06x = 196,142.94 × 66,638.00
  4. Step 4: Simplify right side
    130,860.06x = 13,070,572,255.01
  5. Step 5: Solve for x
    x = 13,070,572,255.01/130,860.06
  6. Step 6: Final answer
    x = 99,882.06

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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.