Home / 282,665.66-423,946.22-128,755.36

Finding the Fourth Proportional to 282,665.66, 423,946.22 and 128,755.36

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Solution

The fourth proportional to 282,665.66, 423,946.22 and 128,755.36 is: 193,109.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,665.66 : 423,946.22 = 128,755.36 : x
  2. Step 2: Convert to fraction form
    282,665.66/423,946.22 = 128,755.36/x
  3. Step 3: Cross multiply
    282,665.66x = 423,946.22 × 128,755.36
  4. Step 4: Simplify right side
    282,665.66x = 54,585,348,176.74
  5. Step 5: Solve for x
    x = 54,585,348,176.74/282,665.66
  6. Step 6: Final answer
    x = 193,109.23

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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.