Home / 131,408.70-197,141.85-42,647.10

Finding the Fourth Proportional to 131,408.70, 197,141.85 and 42,647.10

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Solution

The fourth proportional to 131,408.70, 197,141.85 and 42,647.10 is: 63,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,408.70 : 197,141.85 = 42,647.10 : x
  2. Step 2: Convert to fraction form
    131,408.70/197,141.85 = 42,647.10/x
  3. Step 3: Cross multiply
    131,408.70x = 197,141.85 × 42,647.10
  4. Step 4: Simplify right side
    131,408.70x = 8,407,528,191.14
  5. Step 5: Solve for x
    x = 8,407,528,191.14/131,408.70
  6. Step 6: Final answer
    x = 63,980.00

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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.