Home / 145,311.92-217,971.98-40,130.90

Finding the Fourth Proportional to 145,311.92, 217,971.98 and 40,130.90

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Solution

The fourth proportional to 145,311.92, 217,971.98 and 40,130.90 is: 60,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,311.92 : 217,971.98 = 40,130.90 : x
  2. Step 2: Convert to fraction form
    145,311.92/217,971.98 = 40,130.90/x
  3. Step 3: Cross multiply
    145,311.92x = 217,971.98 × 40,130.90
  4. Step 4: Simplify right side
    145,311.92x = 8,747,410,441.67
  5. Step 5: Solve for x
    x = 8,747,410,441.67/145,311.92
  6. Step 6: Final answer
    x = 60,197.48

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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.