Home / 131,405.38-197,139.06-42,652.06

Finding the Fourth Proportional to 131,405.38, 197,139.06 and 42,652.06

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Solution

The fourth proportional to 131,405.38, 197,139.06 and 42,652.06 is: 63,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,405.38 : 197,139.06 = 42,652.06 : x
  2. Step 2: Convert to fraction form
    131,405.38/197,139.06 = 42,652.06/x
  3. Step 3: Cross multiply
    131,405.38x = 197,139.06 × 42,652.06
  4. Step 4: Simplify right side
    131,405.38x = 8,408,386,522.62
  5. Step 5: Solve for x
    x = 8,408,386,522.62/131,405.38
  6. Step 6: Final answer
    x = 63,988.15

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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.