Home / 205,140.46-282,870.66-133,387.42

Finding the Fourth Proportional to 205,140.46, 282,870.66 and 133,387.42

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Solution

The fourth proportional to 205,140.46, 282,870.66 and 133,387.42 is: 183,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,140.46 : 282,870.66 = 133,387.42 : x
  2. Step 2: Convert to fraction form
    205,140.46/282,870.66 = 133,387.42/x
  3. Step 3: Cross multiply
    205,140.46x = 282,870.66 × 133,387.42
  4. Step 4: Simplify right side
    205,140.46x = 37,731,387,864.57
  5. Step 5: Solve for x
    x = 37,731,387,864.57/205,140.46
  6. Step 6: Final answer
    x = 183,929.53

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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.