Home / 133,180.20-183,785.64-72,751.11

Finding the Fourth Proportional to 133,180.20, 183,785.64 and 72,751.11

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Solution

The fourth proportional to 133,180.20, 183,785.64 and 72,751.11 is: 100,394.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,180.20 : 183,785.64 = 72,751.11 : x
  2. Step 2: Convert to fraction form
    133,180.20/183,785.64 = 72,751.11/x
  3. Step 3: Cross multiply
    133,180.20x = 183,785.64 × 72,751.11
  4. Step 4: Simplify right side
    133,180.20x = 13,370,609,312.06
  5. Step 5: Solve for x
    x = 13,370,609,312.06/133,180.20
  6. Step 6: Final answer
    x = 100,394.87

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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.