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Finding the Fourth Proportional to 133,778.40, 200,602.80 and 74,551.20

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Solution

The fourth proportional to 133,778.40, 200,602.80 and 74,551.20 is: 111,790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,778.40 : 200,602.80 = 74,551.20 : x
  2. Step 2: Convert to fraction form
    133,778.40/200,602.80 = 74,551.20/x
  3. Step 3: Cross multiply
    133,778.40x = 200,602.80 × 74,551.20
  4. Step 4: Simplify right side
    133,778.40x = 14,955,179,463.36
  5. Step 5: Solve for x
    x = 14,955,179,463.36/133,778.40
  6. Step 6: Final answer
    x = 111,790.69

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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.