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Finding the Fourth Proportional to 114,491.40, 171,657.10 and 67,720.20

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Solution

The fourth proportional to 114,491.40, 171,657.10 and 67,720.20 is: 101,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,491.40 : 171,657.10 = 67,720.20 : x
  2. Step 2: Convert to fraction form
    114,491.40/171,657.10 = 67,720.20/x
  3. Step 3: Cross multiply
    114,491.40x = 171,657.10 × 67,720.20
  4. Step 4: Simplify right side
    114,491.40x = 11,624,653,143.42
  5. Step 5: Solve for x
    x = 11,624,653,143.42/114,491.40
  6. Step 6: Final answer
    x = 101,532.98

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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.