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Finding the Fourth Proportional to 133,083.63, 183,658.29 and 72,656.82

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Solution

The fourth proportional to 133,083.63, 183,658.29 and 72,656.82 is: 100,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,083.63 : 183,658.29 = 72,656.82 : x
  2. Step 2: Convert to fraction form
    133,083.63/183,658.29 = 72,656.82/x
  3. Step 3: Cross multiply
    133,083.63x = 183,658.29 × 72,656.82
  4. Step 4: Simplify right side
    133,083.63x = 13,344,027,318.04
  5. Step 5: Solve for x
    x = 13,344,027,318.04/133,083.63
  6. Step 6: Final answer
    x = 100,267.98

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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.