Home / 131,836.10-197,666.79-72,700.10

Finding the Fourth Proportional to 131,836.10, 197,666.79 and 72,700.10

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Solution

The fourth proportional to 131,836.10, 197,666.79 and 72,700.10 is: 109,001.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.10 : 197,666.79 = 72,700.10 : x
  2. Step 2: Convert to fraction form
    131,836.10/197,666.79 = 72,700.10/x
  3. Step 3: Cross multiply
    131,836.10x = 197,666.79 × 72,700.10
  4. Step 4: Simplify right side
    131,836.10x = 14,370,395,399.68
  5. Step 5: Solve for x
    x = 14,370,395,399.68/131,836.10
  6. Step 6: Final answer
    x = 109,001.98

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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.