Home / 171,009.36-256,518.45-81,030.96

Finding the Fourth Proportional to 171,009.36, 256,518.45 and 81,030.96

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Solution

The fourth proportional to 171,009.36, 256,518.45 and 81,030.96 is: 121,548.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,009.36 : 256,518.45 = 81,030.96 : x
  2. Step 2: Convert to fraction form
    171,009.36/256,518.45 = 81,030.96/x
  3. Step 3: Cross multiply
    171,009.36x = 256,518.45 × 81,030.96
  4. Step 4: Simplify right side
    171,009.36x = 20,785,936,261.21
  5. Step 5: Solve for x
    x = 20,785,936,261.21/171,009.36
  6. Step 6: Final answer
    x = 121,548.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.