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Finding the Fourth Proportional to 155,591.95, 214,764.50 and 91,076.29

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Solution

The fourth proportional to 155,591.95, 214,764.50 and 91,076.29 is: 125,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,591.95 : 214,764.50 = 91,076.29 : x
  2. Step 2: Convert to fraction form
    155,591.95/214,764.50 = 91,076.29/x
  3. Step 3: Cross multiply
    155,591.95x = 214,764.50 × 91,076.29
  4. Step 4: Simplify right side
    155,591.95x = 19,559,952,891.41
  5. Step 5: Solve for x
    x = 19,559,952,891.41/155,591.95
  6. Step 6: Final answer
    x = 125,713.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.