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Finding the Fourth Proportional to 85,076.70, 127,615.05 and 73,266.90

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Solution

The fourth proportional to 85,076.70, 127,615.05 and 73,266.90 is: 109,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.70 : 127,615.05 = 73,266.90 : x
  2. Step 2: Convert to fraction form
    85,076.70/127,615.05 = 73,266.90/x
  3. Step 3: Cross multiply
    85,076.70x = 127,615.05 × 73,266.90
  4. Step 4: Simplify right side
    85,076.70x = 9,349,959,106.85
  5. Step 5: Solve for x
    x = 9,349,959,106.85/85,076.70
  6. Step 6: Final answer
    x = 109,900.35

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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.