Home / 133,091.10-183,668.50-72,664.29

Finding the Fourth Proportional to 133,091.10, 183,668.50 and 72,664.29

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Solution

The fourth proportional to 133,091.10, 183,668.50 and 72,664.29 is: 100,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,091.10 : 183,668.50 = 72,664.29 : x
  2. Step 2: Convert to fraction form
    133,091.10/183,668.50 = 72,664.29/x
  3. Step 3: Cross multiply
    133,091.10x = 183,668.50 × 72,664.29
  4. Step 4: Simplify right side
    133,091.10x = 13,346,141,238.70
  5. Step 5: Solve for x
    x = 13,346,141,238.70/133,091.10
  6. Step 6: Final answer
    x = 100,278.24

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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.