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Finding the Fourth Proportional to 133,685.40, 200,463.30 and 74,458.20

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Solution

The fourth proportional to 133,685.40, 200,463.30 and 74,458.20 is: 111,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,685.40 : 200,463.30 = 74,458.20 : x
  2. Step 2: Convert to fraction form
    133,685.40/200,463.30 = 74,458.20/x
  3. Step 3: Cross multiply
    133,685.40x = 200,463.30 × 74,458.20
  4. Step 4: Simplify right side
    133,685.40x = 14,926,136,484.06
  5. Step 5: Solve for x
    x = 14,926,136,484.06/133,685.40
  6. Step 6: Final answer
    x = 111,651.21

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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.