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Finding the Fourth Proportional to 132,679, 183,094.40 and 72,250.36

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Solution

The fourth proportional to 132,679, 183,094.40 and 72,250.36 is: 99,704.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,679 : 183,094.40 = 72,250.36 : x
  2. Step 2: Convert to fraction form
    132,679/183,094.40 = 72,250.36/x
  3. Step 3: Cross multiply
    132,679x = 183,094.40 × 72,250.36
  4. Step 4: Simplify right side
    132,679x = 13,228,636,313.98
  5. Step 5: Solve for x
    x = 13,228,636,313.98/132,679
  6. Step 6: Final answer
    x = 99,704.07

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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.