Home / 282,141.41-423,218.60-68,911.09

Finding the Fourth Proportional to 282,141.41, 423,218.60 and 68,911.09

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Solution

The fourth proportional to 282,141.41, 423,218.60 and 68,911.09 is: 103,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,141.41 : 423,218.60 = 68,911.09 : x
  2. Step 2: Convert to fraction form
    282,141.41/423,218.60 = 68,911.09/x
  3. Step 3: Cross multiply
    282,141.41x = 423,218.60 × 68,911.09
  4. Step 4: Simplify right side
    282,141.41x = 29,164,453,631.67
  5. Step 5: Solve for x
    x = 29,164,453,631.67/282,141.41
  6. Step 6: Final answer
    x = 103,368.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.