Home / 149,748.02-206,650.67-81,764.78

Finding the Fourth Proportional to 149,748.02, 206,650.67 and 81,764.78

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Solution

The fourth proportional to 149,748.02, 206,650.67 and 81,764.78 is: 112,834.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,748.02 : 206,650.67 = 81,764.78 : x
  2. Step 2: Convert to fraction form
    149,748.02/206,650.67 = 81,764.78/x
  3. Step 3: Cross multiply
    149,748.02x = 206,650.67 × 81,764.78
  4. Step 4: Simplify right side
    149,748.02x = 16,896,745,127.33
  5. Step 5: Solve for x
    x = 16,896,745,127.33/149,748.02
  6. Step 6: Final answer
    x = 112,834.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.