Home / 132,836.45-183,308.78-72,405.76

Finding the Fourth Proportional to 132,836.45, 183,308.78 and 72,405.76

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Solution

The fourth proportional to 132,836.45, 183,308.78 and 72,405.76 is: 99,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,836.45 : 183,308.78 = 72,405.76 : x
  2. Step 2: Convert to fraction form
    132,836.45/183,308.78 = 72,405.76/x
  3. Step 3: Cross multiply
    132,836.45x = 183,308.78 × 72,405.76
  4. Step 4: Simplify right side
    132,836.45x = 13,272,610,252.00
  5. Step 5: Solve for x
    x = 13,272,610,252.00/132,836.45
  6. Step 6: Final answer
    x = 99,916.93

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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.