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Finding the Fourth Proportional to 133,028.16, 183,581.76 and 72,599.04

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Solution

The fourth proportional to 133,028.16, 183,581.76 and 72,599.04 is: 100,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,028.16 : 183,581.76 = 72,599.04 : x
  2. Step 2: Convert to fraction form
    133,028.16/183,581.76 = 72,599.04/x
  3. Step 3: Cross multiply
    133,028.16x = 183,581.76 × 72,599.04
  4. Step 4: Simplify right side
    133,028.16x = 13,327,859,537.51
  5. Step 5: Solve for x
    x = 13,327,859,537.51/133,028.16
  6. Step 6: Final answer
    x = 100,188.26

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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.