Home / 123,753.40-170,778.66-67,164.76

Finding the Fourth Proportional to 123,753.40, 170,778.66 and 67,164.76

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Solution

The fourth proportional to 123,753.40, 170,778.66 and 67,164.76 is: 92,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,753.40 : 170,778.66 = 67,164.76 : x
  2. Step 2: Convert to fraction form
    123,753.40/170,778.66 = 67,164.76/x
  3. Step 3: Cross multiply
    123,753.40x = 170,778.66 × 67,164.76
  4. Step 4: Simplify right side
    123,753.40x = 11,470,307,712.02
  5. Step 5: Solve for x
    x = 11,470,307,712.02/123,753.40
  6. Step 6: Final answer
    x = 92,686.81

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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.