Home / 205,869.30-284,015.04-125,283.60

Finding the Fourth Proportional to 205,869.30, 284,015.04 and 125,283.60

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Solution

The fourth proportional to 205,869.30, 284,015.04 and 125,283.60 is: 172,839.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,869.30 : 284,015.04 = 125,283.60 : x
  2. Step 2: Convert to fraction form
    205,869.30/284,015.04 = 125,283.60/x
  3. Step 3: Cross multiply
    205,869.30x = 284,015.04 × 125,283.60
  4. Step 4: Simplify right side
    205,869.30x = 35,582,426,665.34
  5. Step 5: Solve for x
    x = 35,582,426,665.34/205,869.30
  6. Step 6: Final answer
    x = 172,839.89

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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.