Home / 151,916.38-209,642.04-83,936.18

Finding the Fourth Proportional to 151,916.38, 209,642.04 and 83,936.18

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Solution

The fourth proportional to 151,916.38, 209,642.04 and 83,936.18 is: 115,830.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,916.38 : 209,642.04 = 83,936.18 : x
  2. Step 2: Convert to fraction form
    151,916.38/209,642.04 = 83,936.18/x
  3. Step 3: Cross multiply
    151,916.38x = 209,642.04 × 83,936.18
  4. Step 4: Simplify right side
    151,916.38x = 17,596,552,529.11
  5. Step 5: Solve for x
    x = 17,596,552,529.11/151,916.38
  6. Step 6: Final answer
    x = 115,830.52

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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.