Home / 123,387.34-170,274.58-66,798.72

Finding the Fourth Proportional to 123,387.34, 170,274.58 and 66,798.72

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Solution

The fourth proportional to 123,387.34, 170,274.58 and 66,798.72 is: 92,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,387.34 : 170,274.58 = 66,798.72 : x
  2. Step 2: Convert to fraction form
    123,387.34/170,274.58 = 66,798.72/x
  3. Step 3: Cross multiply
    123,387.34x = 170,274.58 × 66,798.72
  4. Step 4: Simplify right side
    123,387.34x = 11,374,123,992.54
  5. Step 5: Solve for x
    x = 11,374,123,992.54/123,387.34
  6. Step 6: Final answer
    x = 92,182.26

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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.