Home / 131,316.60-197,205.30-127,169.40

Finding the Fourth Proportional to 131,316.60, 197,205.30 and 127,169.40

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Solution

The fourth proportional to 131,316.60, 197,205.30 and 127,169.40 is: 190,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,316.60 : 197,205.30 = 127,169.40 : x
  2. Step 2: Convert to fraction form
    131,316.60/197,205.30 = 127,169.40/x
  3. Step 3: Cross multiply
    131,316.60x = 197,205.30 × 127,169.40
  4. Step 4: Simplify right side
    131,316.60x = 25,078,479,677.82
  5. Step 5: Solve for x
    x = 25,078,479,677.82/131,316.60
  6. Step 6: Final answer
    x = 190,977.22

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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.