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Finding the Fourth Proportional to 132,321.82, 182,603.32 and 77,905.62

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Solution

The fourth proportional to 132,321.82, 182,603.32 and 77,905.62 is: 107,509.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,321.82 : 182,603.32 = 77,905.62 : x
  2. Step 2: Convert to fraction form
    132,321.82/182,603.32 = 77,905.62/x
  3. Step 3: Cross multiply
    132,321.82x = 182,603.32 × 77,905.62
  4. Step 4: Simplify right side
    132,321.82x = 14,225,824,858.66
  5. Step 5: Solve for x
    x = 14,225,824,858.66/132,321.82
  6. Step 6: Final answer
    x = 107,509.29

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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.