Home / 123,729.10-170,746.60-67,140.46

Finding the Fourth Proportional to 123,729.10, 170,746.60 and 67,140.46

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Solution

The fourth proportional to 123,729.10, 170,746.60 and 67,140.46 is: 92,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,729.10 : 170,746.60 = 67,140.46 : x
  2. Step 2: Convert to fraction form
    123,729.10/170,746.60 = 67,140.46/x
  3. Step 3: Cross multiply
    123,729.10x = 170,746.60 × 67,140.46
  4. Step 4: Simplify right side
    123,729.10x = 11,464,005,267.44
  5. Step 5: Solve for x
    x = 11,464,005,267.44/123,729.10
  6. Step 6: Final answer
    x = 92,654.07

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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.