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Finding the Fourth Proportional to 140,553.63, 210,786.30 and 47,037.51

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Solution

The fourth proportional to 140,553.63, 210,786.30 and 47,037.51 is: 70,541.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,553.63 : 210,786.30 = 47,037.51 : x
  2. Step 2: Convert to fraction form
    140,553.63/210,786.30 = 47,037.51/x
  3. Step 3: Cross multiply
    140,553.63x = 210,786.30 × 47,037.51
  4. Step 4: Simplify right side
    140,553.63x = 9,914,862,694.11
  5. Step 5: Solve for x
    x = 9,914,862,694.11/140,553.63
  6. Step 6: Final answer
    x = 70,541.49

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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.