Home / 132,810.30-183,272.86-72,379.64

Finding the Fourth Proportional to 132,810.30, 183,272.86 and 72,379.64

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Solution

The fourth proportional to 132,810.30, 183,272.86 and 72,379.64 is: 99,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,810.30 : 183,272.86 = 72,379.64 : x
  2. Step 2: Convert to fraction form
    132,810.30/183,272.86 = 72,379.64/x
  3. Step 3: Cross multiply
    132,810.30x = 183,272.86 × 72,379.64
  4. Step 4: Simplify right side
    132,810.30x = 13,265,223,628.57
  5. Step 5: Solve for x
    x = 13,265,223,628.57/132,810.30
  6. Step 6: Final answer
    x = 99,880.99

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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.