Home / 196,405.89-271,019.08-131,862.05

Finding the Fourth Proportional to 196,405.89, 271,019.08 and 131,862.05

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Solution

The fourth proportional to 196,405.89, 271,019.08 and 131,862.05 is: 181,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,405.89 : 271,019.08 = 131,862.05 : x
  2. Step 2: Convert to fraction form
    196,405.89/271,019.08 = 131,862.05/x
  3. Step 3: Cross multiply
    196,405.89x = 271,019.08 × 131,862.05
  4. Step 4: Simplify right side
    196,405.89x = 35,737,130,818.60
  5. Step 5: Solve for x
    x = 35,737,130,818.60/196,405.89
  6. Step 6: Final answer
    x = 181,955.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.