Home / 120,655.42-166,512.03-69,677.48

Finding the Fourth Proportional to 120,655.42, 166,512.03 and 69,677.48

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Solution

The fourth proportional to 120,655.42, 166,512.03 and 69,677.48 is: 96,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,655.42 : 166,512.03 = 69,677.48 : x
  2. Step 2: Convert to fraction form
    120,655.42/166,512.03 = 69,677.48/x
  3. Step 3: Cross multiply
    120,655.42x = 166,512.03 × 69,677.48
  4. Step 4: Simplify right side
    120,655.42x = 11,602,138,288.57
  5. Step 5: Solve for x
    x = 11,602,138,288.57/120,655.42
  6. Step 6: Final answer
    x = 96,159.28

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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.