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Finding the Fourth Proportional to 101,686.80, 152,573.40 and 49,069.20

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Solution

The fourth proportional to 101,686.80, 152,573.40 and 49,069.20 is: 73,624.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,686.80 : 152,573.40 = 49,069.20 : x
  2. Step 2: Convert to fraction form
    101,686.80/152,573.40 = 49,069.20/x
  3. Step 3: Cross multiply
    101,686.80x = 152,573.40 × 49,069.20
  4. Step 4: Simplify right side
    101,686.80x = 7,486,654,679.28
  5. Step 5: Solve for x
    x = 7,486,654,679.28/101,686.80
  6. Step 6: Final answer
    x = 73,624.65

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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.