Home / 144,964.72-199,966.36-91,164.40

Finding the Fourth Proportional to 144,964.72, 199,966.36 and 91,164.40

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Solution

The fourth proportional to 144,964.72, 199,966.36 and 91,164.40 is: 125,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,964.72 : 199,966.36 = 91,164.40 : x
  2. Step 2: Convert to fraction form
    144,964.72/199,966.36 = 91,164.40/x
  3. Step 3: Cross multiply
    144,964.72x = 199,966.36 × 91,164.40
  4. Step 4: Simplify right side
    144,964.72x = 18,229,813,229.58
  5. Step 5: Solve for x
    x = 18,229,813,229.58/144,964.72
  6. Step 6: Final answer
    x = 125,753.45

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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.