Home / 101,211.05-151,734.54-42,090.97

Finding the Fourth Proportional to 101,211.05, 151,734.54 and 42,090.97

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Solution

The fourth proportional to 101,211.05, 151,734.54 and 42,090.97 is: 63,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,211.05 : 151,734.54 = 42,090.97 : x
  2. Step 2: Convert to fraction form
    101,211.05/151,734.54 = 42,090.97/x
  3. Step 3: Cross multiply
    101,211.05x = 151,734.54 × 42,090.97
  4. Step 4: Simplify right side
    101,211.05x = 6,386,654,318.61
  5. Step 5: Solve for x
    x = 6,386,654,318.61/101,211.05
  6. Step 6: Final answer
    x = 63,102.34

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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.