Home / 123,385.40-170,271.64-66,796.76

Finding the Fourth Proportional to 123,385.40, 170,271.64 and 66,796.76

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Solution

The fourth proportional to 123,385.40, 170,271.64 and 66,796.76 is: 92,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,385.40 : 170,271.64 = 66,796.76 : x
  2. Step 2: Convert to fraction form
    123,385.40/170,271.64 = 66,796.76/x
  3. Step 3: Cross multiply
    123,385.40x = 170,271.64 × 66,796.76
  4. Step 4: Simplify right side
    123,385.40x = 11,373,593,871.89
  5. Step 5: Solve for x
    x = 11,373,593,871.89/123,385.40
  6. Step 6: Final answer
    x = 92,179.41

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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.