Home / 123,442.80-170,351.16-69,727.92

Finding the Fourth Proportional to 123,442.80, 170,351.16 and 69,727.92

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Solution

The fourth proportional to 123,442.80, 170,351.16 and 69,727.92 is: 96,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,442.80 : 170,351.16 = 69,727.92 : x
  2. Step 2: Convert to fraction form
    123,442.80/170,351.16 = 69,727.92/x
  3. Step 3: Cross multiply
    123,442.80x = 170,351.16 × 69,727.92
  4. Step 4: Simplify right side
    123,442.80x = 11,878,232,056.39
  5. Step 5: Solve for x
    x = 11,878,232,056.39/123,442.80
  6. Step 6: Final answer
    x = 96,224.58

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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.