Home / 131,405.39-197,139.05-42,652.07

Finding the Fourth Proportional to 131,405.39, 197,139.05 and 42,652.07

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Solution

The fourth proportional to 131,405.39, 197,139.05 and 42,652.07 is: 63,988.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,405.39 : 197,139.05 = 42,652.07 : x
  2. Step 2: Convert to fraction form
    131,405.39/197,139.05 = 42,652.07/x
  3. Step 3: Cross multiply
    131,405.39x = 197,139.05 × 42,652.07
  4. Step 4: Simplify right side
    131,405.39x = 8,408,388,560.33
  5. Step 5: Solve for x
    x = 8,408,388,560.33/131,405.39
  6. Step 6: Final answer
    x = 63,988.16

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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.