Home / 133,181.24-183,789-72,751.91

Finding the Fourth Proportional to 133,181.24, 183,789 and 72,751.91

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Solution

The fourth proportional to 133,181.24, 183,789 and 72,751.91 is: 100,397.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,181.24 : 183,789 = 72,751.91 : x
  2. Step 2: Convert to fraction form
    133,181.24/183,789 = 72,751.91/x
  3. Step 3: Cross multiply
    133,181.24x = 183,789 × 72,751.91
  4. Step 4: Simplify right side
    133,181.24x = 13,370,999,868.05
  5. Step 5: Solve for x
    x = 13,370,999,868.05/133,181.24
  6. Step 6: Final answer
    x = 100,397.03

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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.