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Finding the Fourth Proportional to 133,071.80, 199,607.70 and 54,242.60

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Solution

The fourth proportional to 133,071.80, 199,607.70 and 54,242.60 is: 81,363.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,071.80 : 199,607.70 = 54,242.60 : x
  2. Step 2: Convert to fraction form
    133,071.80/199,607.70 = 54,242.60/x
  3. Step 3: Cross multiply
    133,071.80x = 199,607.70 × 54,242.60
  4. Step 4: Simplify right side
    133,071.80x = 10,827,240,628.02
  5. Step 5: Solve for x
    x = 10,827,240,628.02/133,071.80
  6. Step 6: Final answer
    x = 81,363.90

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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.