Home / 107,971.44-162,011.85-72,837.28

Finding the Fourth Proportional to 107,971.44, 162,011.85 and 72,837.28

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Solution

The fourth proportional to 107,971.44, 162,011.85 and 72,837.28 is: 109,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,971.44 : 162,011.85 = 72,837.28 : x
  2. Step 2: Convert to fraction form
    107,971.44/162,011.85 = 72,837.28/x
  3. Step 3: Cross multiply
    107,971.44x = 162,011.85 × 72,837.28
  4. Step 4: Simplify right side
    107,971.44x = 11,800,502,411.14
  5. Step 5: Solve for x
    x = 11,800,502,411.14/107,971.44
  6. Step 6: Final answer
    x = 109,292.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.