Home / 131,128.02-196,794.84-91,426.68

Finding the Fourth Proportional to 131,128.02, 196,794.84 and 91,426.68

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Solution

The fourth proportional to 131,128.02, 196,794.84 and 91,426.68 is: 137,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,128.02 : 196,794.84 = 91,426.68 : x
  2. Step 2: Convert to fraction form
    131,128.02/196,794.84 = 91,426.68/x
  3. Step 3: Cross multiply
    131,128.02x = 196,794.84 × 91,426.68
  4. Step 4: Simplify right side
    131,128.02x = 17,992,298,862.33
  5. Step 5: Solve for x
    x = 17,992,298,862.33/131,128.02
  6. Step 6: Final answer
    x = 137,211.70

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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.