Home / 123,519.60-170,457.66-66,930.98

Finding the Fourth Proportional to 123,519.60, 170,457.66 and 66,930.98

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Solution

The fourth proportional to 123,519.60, 170,457.66 and 66,930.98 is: 92,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,519.60 : 170,457.66 = 66,930.98 : x
  2. Step 2: Convert to fraction form
    123,519.60/170,457.66 = 66,930.98/x
  3. Step 3: Cross multiply
    123,519.60x = 170,457.66 × 66,930.98
  4. Step 4: Simplify right side
    123,519.60x = 11,408,897,380.02
  5. Step 5: Solve for x
    x = 11,408,897,380.02/123,519.60
  6. Step 6: Final answer
    x = 92,365.08

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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.