Home / 109,931.45-164,847.90-43,337.30

Finding the Fourth Proportional to 109,931.45, 164,847.90 and 43,337.30

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Solution

The fourth proportional to 109,931.45, 164,847.90 and 43,337.30 is: 64,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,931.45 : 164,847.90 = 43,337.30 : x
  2. Step 2: Convert to fraction form
    109,931.45/164,847.90 = 43,337.30/x
  3. Step 3: Cross multiply
    109,931.45x = 164,847.90 × 43,337.30
  4. Step 4: Simplify right side
    109,931.45x = 7,144,062,896.67
  5. Step 5: Solve for x
    x = 7,144,062,896.67/109,931.45
  6. Step 6: Final answer
    x = 64,986.52

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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.