Home / 107,985.49-162,027.47-55,431.91

Finding the Fourth Proportional to 107,985.49, 162,027.47 and 55,431.91

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Solution

The fourth proportional to 107,985.49, 162,027.47 and 55,431.91 is: 83,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,985.49 : 162,027.47 = 55,431.91 : x
  2. Step 2: Convert to fraction form
    107,985.49/162,027.47 = 55,431.91/x
  3. Step 3: Cross multiply
    107,985.49x = 162,027.47 × 55,431.91
  4. Step 4: Simplify right side
    107,985.49x = 8,981,492,134.57
  5. Step 5: Solve for x
    x = 8,981,492,134.57/107,985.49
  6. Step 6: Final answer
    x = 83,173.14

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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.