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Finding the Fourth Proportional to 107,627.80, 161,384.10 and 45,227.80

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Solution

The fourth proportional to 107,627.80, 161,384.10 and 45,227.80 is: 67,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,627.80 : 161,384.10 = 45,227.80 : x
  2. Step 2: Convert to fraction form
    107,627.80/161,384.10 = 45,227.80/x
  3. Step 3: Cross multiply
    107,627.80x = 161,384.10 × 45,227.80
  4. Step 4: Simplify right side
    107,627.80x = 7,299,047,797.98
  5. Step 5: Solve for x
    x = 7,299,047,797.98/107,627.80
  6. Step 6: Final answer
    x = 67,817.50

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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.