Home / 131,407.40-197,142.06-42,654.08

Finding the Fourth Proportional to 131,407.40, 197,142.06 and 42,654.08

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Solution

The fourth proportional to 131,407.40, 197,142.06 and 42,654.08 is: 63,991.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,407.40 : 197,142.06 = 42,654.08 : x
  2. Step 2: Convert to fraction form
    131,407.40/197,142.06 = 42,654.08/x
  3. Step 3: Cross multiply
    131,407.40x = 197,142.06 × 42,654.08
  4. Step 4: Simplify right side
    131,407.40x = 8,408,913,198.60
  5. Step 5: Solve for x
    x = 8,408,913,198.60/131,407.40
  6. Step 6: Final answer
    x = 63,991.17

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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.