Home / 205,142.21-282,873.07-133,389.17

Finding the Fourth Proportional to 205,142.21, 282,873.07 and 133,389.17

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Solution

The fourth proportional to 205,142.21, 282,873.07 and 133,389.17 is: 183,931.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,142.21 : 282,873.07 = 133,389.17 : x
  2. Step 2: Convert to fraction form
    205,142.21/282,873.07 = 133,389.17/x
  3. Step 3: Cross multiply
    205,142.21x = 282,873.07 × 133,389.17
  4. Step 4: Simplify right side
    205,142.21x = 37,732,203,835.80
  5. Step 5: Solve for x
    x = 37,732,203,835.80/205,142.21
  6. Step 6: Final answer
    x = 183,931.94

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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.