Home / 158,236.49-218,368.76-86,623.17

Finding the Fourth Proportional to 158,236.49, 218,368.76 and 86,623.17

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Solution

The fourth proportional to 158,236.49, 218,368.76 and 86,623.17 is: 119,541.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,236.49 : 218,368.76 = 86,623.17 : x
  2. Step 2: Convert to fraction form
    158,236.49/218,368.76 = 86,623.17/x
  3. Step 3: Cross multiply
    158,236.49x = 218,368.76 × 86,623.17
  4. Step 4: Simplify right side
    158,236.49x = 18,915,793,787.05
  5. Step 5: Solve for x
    x = 18,915,793,787.05/158,236.49
  6. Step 6: Final answer
    x = 119,541.29

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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.