Home / 123,502.20-170,433.05-66,913.58

Finding the Fourth Proportional to 123,502.20, 170,433.05 and 66,913.58

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Solution

The fourth proportional to 123,502.20, 170,433.05 and 66,913.58 is: 92,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,502.20 : 170,433.05 = 66,913.58 : x
  2. Step 2: Convert to fraction form
    123,502.20/170,433.05 = 66,913.58/x
  3. Step 3: Cross multiply
    123,502.20x = 170,433.05 × 66,913.58
  4. Step 4: Simplify right side
    123,502.20x = 11,404,284,840.94
  5. Step 5: Solve for x
    x = 11,404,284,840.94/123,502.20
  6. Step 6: Final answer
    x = 92,340.74

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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.