Home / 133,229.45-183,851.16-72,802.15

Finding the Fourth Proportional to 133,229.45, 183,851.16 and 72,802.15

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Solution

The fourth proportional to 133,229.45, 183,851.16 and 72,802.15 is: 100,463.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,229.45 : 183,851.16 = 72,802.15 : x
  2. Step 2: Convert to fraction form
    133,229.45/183,851.16 = 72,802.15/x
  3. Step 3: Cross multiply
    133,229.45x = 183,851.16 × 72,802.15
  4. Step 4: Simplify right side
    133,229.45x = 13,384,759,727.99
  5. Step 5: Solve for x
    x = 13,384,759,727.99/133,229.45
  6. Step 6: Final answer
    x = 100,463.97

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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.