Home / 132,810.24-183,272.78-72,379.58

Finding the Fourth Proportional to 132,810.24, 183,272.78 and 72,379.58

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Solution

The fourth proportional to 132,810.24, 183,272.78 and 72,379.58 is: 99,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,810.24 : 183,272.78 = 72,379.58 : x
  2. Step 2: Convert to fraction form
    132,810.24/183,272.78 = 72,379.58/x
  3. Step 3: Cross multiply
    132,810.24x = 183,272.78 × 72,379.58
  4. Step 4: Simplify right side
    132,810.24x = 13,265,206,841.83
  5. Step 5: Solve for x
    x = 13,265,206,841.83/132,810.24
  6. Step 6: Final answer
    x = 99,880.90

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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.