Home / 123,703.20-170,709.12-67,114.80

Finding the Fourth Proportional to 123,703.20, 170,709.12 and 67,114.80

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Solution

The fourth proportional to 123,703.20, 170,709.12 and 67,114.80 is: 92,617.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,703.20 : 170,709.12 = 67,114.80 : x
  2. Step 2: Convert to fraction form
    123,703.20/170,709.12 = 67,114.80/x
  3. Step 3: Cross multiply
    123,703.20x = 170,709.12 × 67,114.80
  4. Step 4: Simplify right side
    123,703.20x = 11,457,108,446.98
  5. Step 5: Solve for x
    x = 11,457,108,446.98/123,703.20
  6. Step 6: Final answer
    x = 92,617.72

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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.