Home / 132,834.67-183,310.65-72,405.31

Finding the Fourth Proportional to 132,834.67, 183,310.65 and 72,405.31

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Solution

The fourth proportional to 132,834.67, 183,310.65 and 72,405.31 is: 99,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,834.67 : 183,310.65 = 72,405.31 : x
  2. Step 2: Convert to fraction form
    132,834.67/183,310.65 = 72,405.31/x
  3. Step 3: Cross multiply
    132,834.67x = 183,310.65 × 72,405.31
  4. Step 4: Simplify right side
    132,834.67x = 13,272,664,439.55
  5. Step 5: Solve for x
    x = 13,272,664,439.55/132,834.67
  6. Step 6: Final answer
    x = 99,918.68

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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.