Home / 123,729.36-170,746.95-67,140.73

Finding the Fourth Proportional to 123,729.36, 170,746.95 and 67,140.73

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Solution

The fourth proportional to 123,729.36, 170,746.95 and 67,140.73 is: 92,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,729.36 : 170,746.95 = 67,140.73 : x
  2. Step 2: Convert to fraction form
    123,729.36/170,746.95 = 67,140.73/x
  3. Step 3: Cross multiply
    123,729.36x = 170,746.95 × 67,140.73
  4. Step 4: Simplify right side
    123,729.36x = 11,464,074,868.27
  5. Step 5: Solve for x
    x = 11,464,074,868.27/123,729.36
  6. Step 6: Final answer
    x = 92,654.44

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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.