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Finding the Fourth Proportional to 133,397.55, 200,078.10 and 39,903.30

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Solution

The fourth proportional to 133,397.55, 200,078.10 and 39,903.30 is: 59,849.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,397.55 : 200,078.10 = 39,903.30 : x
  2. Step 2: Convert to fraction form
    133,397.55/200,078.10 = 39,903.30/x
  3. Step 3: Cross multiply
    133,397.55x = 200,078.10 × 39,903.30
  4. Step 4: Simplify right side
    133,397.55x = 7,983,776,447.73
  5. Step 5: Solve for x
    x = 7,983,776,447.73/133,397.55
  6. Step 6: Final answer
    x = 59,849.50

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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.