Home / 123,561.74-170,513.34-69,844.86

Finding the Fourth Proportional to 123,561.74, 170,513.34 and 69,844.86

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Solution

The fourth proportional to 123,561.74, 170,513.34 and 69,844.86 is: 96,384.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,561.74 : 170,513.34 = 69,844.86 : x
  2. Step 2: Convert to fraction form
    123,561.74/170,513.34 = 69,844.86/x
  3. Step 3: Cross multiply
    123,561.74x = 170,513.34 × 69,844.86
  4. Step 4: Simplify right side
    123,561.74x = 11,909,480,360.43
  5. Step 5: Solve for x
    x = 11,909,480,360.43/123,561.74
  6. Step 6: Final answer
    x = 96,384.86

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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.