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Finding the Fourth Proportional to 102,743.21, 154,042.37 and 39,510.21

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Solution

The fourth proportional to 102,743.21, 154,042.37 and 39,510.21 is: 59,237.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,743.21 : 154,042.37 = 39,510.21 : x
  2. Step 2: Convert to fraction form
    102,743.21/154,042.37 = 39,510.21/x
  3. Step 3: Cross multiply
    102,743.21x = 154,042.37 × 39,510.21
  4. Step 4: Simplify right side
    102,743.21x = 6,086,246,387.60
  5. Step 5: Solve for x
    x = 6,086,246,387.60/102,743.21
  6. Step 6: Final answer
    x = 59,237.46

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1.5x scale

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.