Home / 151,727.36-209,358.72-84,659.20

Finding the Fourth Proportional to 151,727.36, 209,358.72 and 84,659.20

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Solution

The fourth proportional to 151,727.36, 209,358.72 and 84,659.20 is: 116,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,727.36 : 209,358.72 = 84,659.20 : x
  2. Step 2: Convert to fraction form
    151,727.36/209,358.72 = 84,659.20/x
  3. Step 3: Cross multiply
    151,727.36x = 209,358.72 × 84,659.20
  4. Step 4: Simplify right side
    151,727.36x = 17,724,141,748.22
  5. Step 5: Solve for x
    x = 17,724,141,748.22/151,727.36
  6. Step 6: Final answer
    x = 116,815.73

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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.