Home / 127,930.60-191,895.90-72,634.60

Finding the Fourth Proportional to 127,930.60, 191,895.90 and 72,634.60

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Solution

The fourth proportional to 127,930.60, 191,895.90 and 72,634.60 is: 108,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,930.60 : 191,895.90 = 72,634.60 : x
  2. Step 2: Convert to fraction form
    127,930.60/191,895.90 = 72,634.60/x
  3. Step 3: Cross multiply
    127,930.60x = 191,895.90 × 72,634.60
  4. Step 4: Simplify right side
    127,930.60x = 13,938,281,938.14
  5. Step 5: Solve for x
    x = 13,938,281,938.14/127,930.60
  6. Step 6: Final answer
    x = 108,951.90

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1.5x scale

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.