Home / 131,197.77-196,796.70-72,407.12

Finding the Fourth Proportional to 131,197.77, 196,796.70 and 72,407.12

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Solution

The fourth proportional to 131,197.77, 196,796.70 and 72,407.12 is: 108,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,197.77 : 196,796.70 = 72,407.12 : x
  2. Step 2: Convert to fraction form
    131,197.77/196,796.70 = 72,407.12/x
  3. Step 3: Cross multiply
    131,197.77x = 196,796.70 × 72,407.12
  4. Step 4: Simplify right side
    131,197.77x = 14,249,481,288.52
  5. Step 5: Solve for x
    x = 14,249,481,288.52/131,197.77
  6. Step 6: Final answer
    x = 108,610.70

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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.