Home / 132,969.16-183,493.81-72,539.79

Finding the Fourth Proportional to 132,969.16, 183,493.81 and 72,539.79

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Solution

The fourth proportional to 132,969.16, 183,493.81 and 72,539.79 is: 100,102.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,969.16 : 183,493.81 = 72,539.79 : x
  2. Step 2: Convert to fraction form
    132,969.16/183,493.81 = 72,539.79/x
  3. Step 3: Cross multiply
    132,969.16x = 183,493.81 × 72,539.79
  4. Step 4: Simplify right side
    132,969.16x = 13,310,601,398.85
  5. Step 5: Solve for x
    x = 13,310,601,398.85/132,969.16
  6. Step 6: Final answer
    x = 100,102.92

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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.