Home / 132,699.05-183,121.62-72,269.50

Finding the Fourth Proportional to 132,699.05, 183,121.62 and 72,269.50

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Solution

The fourth proportional to 132,699.05, 183,121.62 and 72,269.50 is: 99,730.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,699.05 : 183,121.62 = 72,269.50 : x
  2. Step 2: Convert to fraction form
    132,699.05/183,121.62 = 72,269.50/x
  3. Step 3: Cross multiply
    132,699.05x = 183,121.62 × 72,269.50
  4. Step 4: Simplify right side
    132,699.05x = 13,234,107,916.59
  5. Step 5: Solve for x
    x = 13,234,107,916.59/132,699.05
  6. Step 6: Final answer
    x = 99,730.24

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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.