Home / 133,144.49-183,740.64-75,781.00

Finding the Fourth Proportional to 133,144.49, 183,740.64 and 75,781.00

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Solution

The fourth proportional to 133,144.49, 183,740.64 and 75,781.00 is: 104,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,144.49 : 183,740.64 = 75,781.00 : x
  2. Step 2: Convert to fraction form
    133,144.49/183,740.64 = 75,781.00/x
  3. Step 3: Cross multiply
    133,144.49x = 183,740.64 × 75,781.00
  4. Step 4: Simplify right side
    133,144.49x = 13,924,049,385.34
  5. Step 5: Solve for x
    x = 13,924,049,385.34/133,144.49
  6. Step 6: Final answer
    x = 104,578.49

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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.