Home / 132,717.11-183,143.30-72,287.46

Finding the Fourth Proportional to 132,717.11, 183,143.30 and 72,287.46

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Solution

The fourth proportional to 132,717.11, 183,143.30 and 72,287.46 is: 99,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,717.11 : 183,143.30 = 72,287.46 : x
  2. Step 2: Convert to fraction form
    132,717.11/183,143.30 = 72,287.46/x
  3. Step 3: Cross multiply
    132,717.11x = 183,143.30 × 72,287.46
  4. Step 4: Simplify right side
    132,717.11x = 13,238,963,611.58
  5. Step 5: Solve for x
    x = 13,238,963,611.58/132,717.11
  6. Step 6: Final answer
    x = 99,753.26

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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.