Home / 108,521.52-149,605.56-79,790.46

Finding the Fourth Proportional to 108,521.52, 149,605.56 and 79,790.46

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Solution

The fourth proportional to 108,521.52, 149,605.56 and 79,790.46 is: 109,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521.52 : 149,605.56 = 79,790.46 : x
  2. Step 2: Convert to fraction form
    108,521.52/149,605.56 = 79,790.46/x
  3. Step 3: Cross multiply
    108,521.52x = 149,605.56 × 79,790.46
  4. Step 4: Simplify right side
    108,521.52x = 11,937,096,450.96
  5. Step 5: Solve for x
    x = 11,937,096,450.96/108,521.52
  6. Step 6: Final answer
    x = 109,997.51

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1.5x scale

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.