Home / 137,894.28-190,288.08-84,269.04

Finding the Fourth Proportional to 137,894.28, 190,288.08 and 84,269.04

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Solution

The fourth proportional to 137,894.28, 190,288.08 and 84,269.04 is: 116,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,894.28 : 190,288.08 = 84,269.04 : x
  2. Step 2: Convert to fraction form
    137,894.28/190,288.08 = 84,269.04/x
  3. Step 3: Cross multiply
    137,894.28x = 190,288.08 × 84,269.04
  4. Step 4: Simplify right side
    137,894.28x = 16,035,393,825.04
  5. Step 5: Solve for x
    x = 16,035,393,825.04/137,894.28
  6. Step 6: Final answer
    x = 116,287.59

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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.