Home / 101,821.81-152,534.04-66,654.85

Finding the Fourth Proportional to 101,821.81, 152,534.04 and 66,654.85

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Solution

The fourth proportional to 101,821.81, 152,534.04 and 66,654.85 is: 99,852.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,821.81 : 152,534.04 = 66,654.85 : x
  2. Step 2: Convert to fraction form
    101,821.81/152,534.04 = 66,654.85/x
  3. Step 3: Cross multiply
    101,821.81x = 152,534.04 × 66,654.85
  4. Step 4: Simplify right side
    101,821.81x = 10,167,132,460.15
  5. Step 5: Solve for x
    x = 10,167,132,460.15/101,821.81
  6. Step 6: Final answer
    x = 99,852.21

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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.