Home / 123,412.52-170,309.40-66,823.76

Finding the Fourth Proportional to 123,412.52, 170,309.40 and 66,823.76

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Solution

The fourth proportional to 123,412.52, 170,309.40 and 66,823.76 is: 92,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,412.52 : 170,309.40 = 66,823.76 : x
  2. Step 2: Convert to fraction form
    123,412.52/170,309.40 = 66,823.76/x
  3. Step 3: Cross multiply
    123,412.52x = 170,309.40 × 66,823.76
  4. Step 4: Simplify right side
    123,412.52x = 11,380,714,471.34
  5. Step 5: Solve for x
    x = 11,380,714,471.34/123,412.52
  6. Step 6: Final answer
    x = 92,216.86

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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.