Home / 136,964.00-205,492.13-86,304.20

Finding the Fourth Proportional to 136,964.00, 205,492.13 and 86,304.20

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Solution

The fourth proportional to 136,964.00, 205,492.13 and 86,304.20 is: 129,485.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,964.00 : 205,492.13 = 86,304.20 : x
  2. Step 2: Convert to fraction form
    136,964.00/205,492.13 = 86,304.20/x
  3. Step 3: Cross multiply
    136,964.00x = 205,492.13 × 86,304.20
  4. Step 4: Simplify right side
    136,964.00x = 17,734,833,074.25
  5. Step 5: Solve for x
    x = 17,734,833,074.25/136,964.00
  6. Step 6: Final answer
    x = 129,485.36

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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.