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Finding the Fourth Proportional to 133,041.15, 183,477.42 and 85,285.44

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Solution

The fourth proportional to 133,041.15, 183,477.42 and 85,285.44 is: 117,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,041.15 : 183,477.42 = 85,285.44 : x
  2. Step 2: Convert to fraction form
    133,041.15/183,477.42 = 85,285.44/x
  3. Step 3: Cross multiply
    133,041.15x = 183,477.42 × 85,285.44
  4. Step 4: Simplify right side
    133,041.15x = 15,647,952,494.76
  5. Step 5: Solve for x
    x = 15,647,952,494.76/133,041.15
  6. Step 6: Final answer
    x = 117,617.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.