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Finding the Fourth Proportional to 133,160.64, 183,760.75 and 72,731.30

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Solution

The fourth proportional to 133,160.64, 183,760.75 and 72,731.30 is: 100,368.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,160.64 : 183,760.75 = 72,731.30 : x
  2. Step 2: Convert to fraction form
    133,160.64/183,760.75 = 72,731.30/x
  3. Step 3: Cross multiply
    133,160.64x = 183,760.75 × 72,731.30
  4. Step 4: Simplify right side
    133,160.64x = 13,365,158,442.24
  5. Step 5: Solve for x
    x = 13,365,158,442.24/133,160.64
  6. Step 6: Final answer
    x = 100,368.68

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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.